ceTwit is a windows mobile twitter client written in c# leveraging the .net compact framework.

NEW - Twitpic is an excellent service that allows you to upload a picture and cross posts it to twitter.

To update Twitpic:

1. Select Update from the right soft key
2. Type a short message, Shorter than twitter.
3. Select menu/attach pic
4. Find a jpg file and attach it
5. Upload

Current Feature Set:

• Timeline display
• Account storage
• Status Updates
• Direct Messages
• Click to reply
• Automated Refresh
• Smartphone support
• Avatars in timeline (pro)
• Local caching of avatars (pro)
• Squeezer support
• Relative Timestamps
• Follow/Unfollow
• Speed Pagination (pro)