Tvider is single-task web-based Twitter app for tweeting videos, images, and audio/voice from mobile devices or webcams. Tvider is available on all major mobile platforms including iPhone, Blackberry, Android, Symbian, Java and BREW. For this review we tested the web app in OS X and Windows.
UPDATE: Tweetie is now the Official Twitter App for iPhone, simply called Twitter
The app so nice he made it Twice! Tweetie 2 is an award-winning Twitter app for the iPhone and iPod Touch, stowing away an unbelievable number of features into a simple, easy, attractive interface. Seriously!! Every pixel of this interface is precisely designed and intuitive to use.
Echofon for iPhone, formerly TwitterFon, is a super-fast, easy-to-use Twitter app sporting video recording. They changed their name presumably to remove the whole word Twitter out of the app name to avoid trademark trouble. Although the free version is definitely stripped down compared to their $4.99 Pro version, Echofon for iPhone has quite a few features:
Tweetie is a gorgeous, full-featured desktop Twitter client for Macintosh. atebits is the company behind Tweetie, already known for the fantastic iPhone version of Tweetie. Notable features include: