Good Gear Guide
In pictures: Free Android apps for BlackBerry Play...
Twitter for BlackBerry PlayBook
A number of Twitter apps are available for the PlayBook, including my personal favorite, Blaq, but no "official" Twitter app has been released for RIM's tablet. If you're familiar with the Android Twitter app, or simply prefer a basic but efficient Twitter experience on your PlayBook, you'll appreciate the official Twitter for Android app. Its clean interface makes Tweeting simple and easy. And it runs very well on the PlayBook.
In pictures: Free Android apps for BlackBerry PlayBook, 10 best downloads