Platform: iPhone (247)

HootSuite for the iPhone supports scheduled tweets, multiple accounts, and native Twitter lists, in addition to all your standard iPhone Twitter client features. It also has analytics to track clicks from your ow.ly links, and you can view activity by Twitter profile and date.

MovaTwitter is a Japanese application and all documentation is in Japanese.It appears to allow you to post live video and photos to Twitter.

Inspired by the Chant made famous by Fireman Ed, Jets fans struggle with typing the #J_E_T_S_JETS_JETS_JETS!! from an iPhone, but now with one click of a button, let your voice be heard online. Integration to Facebook Fan page, Del.icio.us, Twitter, Flickr, YouTube, and the Jets Twit Blog!

**Keep Up Without Following:** pTTe is a Tweet Reader, pre-configured to show the latest updates by US Elected Officials. Hundreds of our politicians are actively tweeting their activities, with this app you can easily keep up to date and enjoy the democratic process in the Twitter Age, without cluttering up your regular twitter timeline. **State-wide and custom feed aggregations:** In addition to following individual politicos, you can choose to see all politician's tweets from a particular state all at once, for a unique perspective on your local political scene. You can also custom create your own aggregate feed based on your saved favorites.

tweeps! is a fun way to discover who you and your friends are following in common on Twitter! Simply enter your Twitter username to see your list of friends (people you're following). Select a friend and see who you both are following in common! You can continue to drill down and see who you have in common with *those* friends. Internet connectivity (3G, Edge, or Wi-Fi) required. How much do you have in common with your tweeps?

TvvitterBug 1.5 Just released on the App Store has everything you want in a Twitter App - Multiple Timeline Views, Multiple Accounts, Photo tweets, Video tweets, Integrated Web Browser, Geo-Location, URL Shortening, Translations, Editable Retweets, and more…, all in the most visually attractive, simple, quick and responsive, fun to use app you've ever seen. If you really enjoy Twitter, this App's for you! You can look it up on the web at: http://www.tvvitterbug.com, or on Twitter.com/TvvitterBug.

TwentyThree aggregates the position of your friends on all your social location networks and let you see them where they last checked in. But that is not all. TwentyThree also sports a native check-in module which will let you publish your location with all your accounts easily. The list of supported services currently include Twitter, foursquare, Gowalla and Brightkite.

A multi-account Twitter client ($2.99) for the iPhone that supports posting to Ping.fm, the option to hide users, custom font sizes, and interchangeable tabs. - Mashable.com

Schmap GeoTweeter is an iPhone app that puts the @where' into your tweets. Messages automatically include a schmap.me link, showing followers your exact location with a configurable map icon: say more about places you visit with an optional photo and star rating.

Lifestreaming iPhone app that keeps track of trends / news of importance across multiple networks, including Twitter.

Tweeterena is a gorgeous new twitter client made specifically for the iPhone and iPod Touch. Tweeterena's ease of use is evident right from the beginning, its sleek colorful design is aimed at mobile devices enabling you to tweet away quickly. many twitter apps have become cluttered - not twitterena, it maintains full functionality of your most used twitter tasks but does it in a nicer way :D Tweeterena allows you to do the most used twitter tasks right from the palm of your hand. - twitterena features - see your followers recent tweets look at their profiles see your direct messages see your replies and reply to tweets magic refresh clear twitterenas memory tweet to the world look at your profile upload pictures to twitpic follow new users and a lot more.... twitterena's beautiful interface speaks for itself.... enjoy tweeting tweeps with the gorgeous twitterena :)

"Think simple" as my old master used to say - meaning reduce the whole of its parts into the simplest terms, getting back to first principles." ~ Frank Lloyd Wright Tweetery is an amazingly easy to use Twitter client. We’ve purposefully left out much of what makes most other iPhone Twitter apps overwhelming and we think you’ll like it because of it's simplicity. – Elegant, Clean Design: We believe design is important. Tweetery offers great features without being overcrowded by lots of buttons. The simple interface puts the spotlight where it should be- on the tweets. – Muting Users: Our quick mute function is a lifesaver! You can easily hide someone’s tweets temporarily without un-following them when they become too noisy. – Quick Action Panel: Very simple to use, the "Quick action panel" makes interacting with tweets a joy. By far the easiest way to tweet on the iPhone. Quickly reply, retweet, direct message, favorite, jump to a user profile, mute a user, or email a link to a tweet– all within a tap. FEATURES: Clean, elegant interface Ad free! Mute users temporarily, no un-follow needed! View friend tweets and your mentions Post new tweets, retweet, and replies Photo support Edit or delete your tweets Send, reply to, and delete direct messages Add, view, and delete favorite tweets Follow and unfollow people In-app web browser for viewing links View friend profiles Email a link to a tweet Intelligent caching recognizes updated avatars Seemless Refreshing Quick Action Panel Manual refresh We look forward to making this the best way to Tweet on the iPhone and we hope that we can convince you to make this your default Twitter app. Follow @TweetableApp on Twitter to join in the discussion about Tweetable.

Koren app called Bluebird. The Korean Characters in the name translate "Blue New"

Twitter client for iPhone and iPod touch

We have scaled Twitter to work perfectly on your iPhone. We paid close attention to the details so the Twitter experience would be preserved. To use Twitter for iPhone you’ll need an iPhone and a Twitter account

Pegshot is a photo/video service that enables friends & family to experience what's happening where you are.

Summizer is a Twitter Search App for the iPhone. Summizer quickly and easily tracks Twitter and follows the trends you care about. Summizer allows you to save your search terms for 1 touch access later. Use Summizer to watch what people are saying about a topic in real time, check user opinions about your new product feature, or see how people are reacting to a major event.

Seesmic for iPhone brings an efficient perspective to social networking. Seesmic for iPhone natively supports Twitter, Facebook and Ping.fm, allowing you to update dozens of social networks at one time. You can cross-post between the multiple accounts, and still configure multiple spaces and personalize the application the way you want. You can navigate through Accounts, Searches, Trending Topics and many more! The application also allows you to save and share important messages by e-mail or Evernote. With its user-friendly design, Seesmic for iPhone offers a meaningful exploration of your online universe.

Notifo is a way for users to receive mobile notifications for anything. Services integrate with the Notifo API and send users notifications about events, announcements, whatever! Follow @notifo and @jazzychad on Twitter for updates! If you are a User, you can subscribe to receive notifications from your favorite services that integrate with Notifo. On Notifo's site you can set timers, send yourself messages, set stock alerts, and sign up for March Madness score alerts. More built-in services will be released in the near future. If you are a Service, you can integrate with Notifo's API and start sending mobile notifications to your users within a few hours. No need to spend time or resources developing mobile applications just so you can reach your users!

GPS Twit is a simple iPhone application that allows users to post their GPS location to a map. The application also allows users to post photos. Users viewing the links can see thousands of other tweets from around the world.