Yakkle is an instant messaging, desktop sharing, VOIP, and full featured Twitter client.
Yakkle has a built in Twitter client allowing you to login directly to Twitter, turn on/off automatic updates of incoming Twitter status messages, create a status, send a direct message, search all of Twitter, and customize your Yakkle + Twitter options. Yakkle is one of the first to introduce a Jabber, XMPP, Instant Messaging application integrated with Twitter.

TwitPal is a full-featured twitter client for iPhone and Android. It provides innovative and must-have features for Twitter. Some of...
Twee is a Twitter client for WebOS based devices. It supports notifications, photo and video sharing, location services, etc.