Twikini
I have been using Twikini on my Windows Mobile 6.1 phone for the past few weeks and it is really a slick tool. Twikini is a Twitter client for Windows Mobile and the most recent version that I have been using handles your main timeline, replies and now direct messages.
Another app I have tried is called Scrub and it helps you to identify missing info in your contacts list, such as phone numbers or email addresses.
Finally, one app that I have not tried yet but hope to soon is called Power SMS. I do a lot of texting, some twitter related and some not. Looks like PowerSMS adds some nice features, I might write more about that, once I try it for awhile.
There is more apps there too, so check out Trinket software.
If you have a Windows Mobile smartphone, check this out. I can say first hand that I recommend this app. Plus they have several other WM6 apps at their site.
