Wordpress users, rejoice! The team from Automatic has ported their Android version of the WordPress app to the PlayBook so that everyone can make use of it on the go. Do give this a shot if your running wordpress!
It includes the following features:
Write Posts, including the adding of media content
Of course, the features are well, much similar to that which you would find in the WordPress for BlackBerry of course with the exception that it is designed for your PlayBook with a much higher resolution.
Download available from BlackBerry AppWorld