When I use my BlackBerry Bold, Ubertwitter is my Twitter app of choice. The official BlackBerry Twitter app may be better-designed, but UberTwitter's just got too many features to ignore—and it's stable, too. iPhone users can now download it for free, and view links within tweets thanks to the new UberView preview feature, which doesn't require you to open a new window to check out the link.

It's got tough competition in the form of the official (and free) Twitter app, though. [iTunes via UberPhones via UberGizmo]