Trying Twittelator & liking it lots. It's packed w/ features, incl. Posterous support, which I'm testing now.

And the interface is surprisingly intuitive and accessible despite the wealth of features.
It does, however, lack push notifications, but there are apps out there that fill this void. I'm currently trying out iTweetReply, which seems to be working just fine. Unlike competing products Notifications and Tweet Push, you don't have to "pay as you go" in order to keep getting notifications. With iTweetReply, you pay a small price for the app up front, then the only in-app purchase requirements are if you need more than two searches that you want push notifications for.







