PockeTwit is a twitter client for the Windows Mobile Professional platform.

Features:
– A unique user interface
– Display public, user, and friends timelines
– Update status
– URL shortining with is.gd
– Reply to tweets
– Show profiles
– Clickable @names and URLs

Discussion: http://forum.xda-developers.com/showthread.php?t=411536

http://code.google.com/p/pocketwit/