Good Gear Guide
In pictures: Free Android apps for BlackBerry Play...
Dropbox for BlackBerry PlayBook
Dropbox, perhaps the most popular and widely used cloud storage service, is now available for the BlackBerry PlayBook…or at least the Android version can be sideloaded. Upload various file types, including documents, images and video, to your Dropbox, and download files already stored in the cloud via BlackBerry tablet. The Android app runs very smoothly on the PlayBook, and I haven't come across any compatibility issues at all.
In pictures: Free Android apps for BlackBerry PlayBook, 10 best downloads