Twikini
I have been on the search for a Windows Mobile/Pocket PC Twitter application for some time. I downloaded and installed a couple (which shall respectfully remain nameless) and they were dreadful. A mobile application shouldn't have an instant arthritic feel to it. Dismayed, I continue my search.
I came across Twikini, from Trinket software because it had received favorable reviews. I also liked the look of the application.
So here's hoping for the best. I'll update after a few days of using it to give a full review, since apparently, there's a lack of Windows Mobile love out there (at least in comparison to the iPhone love).