I'm currently trying out TwitterBerry, but whenever I go to check the TimeLine it usually shows me 4, 6 or even more exact similar versions of an update I've already made minutes ago.
I really enjoy TwitterBerry, but that's a small annoyance that I can't get by and I'm sure it'll become even more annoying later on.
good luck with that, i've been waiting for over a monmth for an invite and have even received an email ststaing that i was invited and to wait for a link to be sent to me.