WordPress for BlackBerry smartphones and PlayBook has been updated today. Smartphone update version is v1.6.4, and for PlayBook is v2.1.5. Didn't see a changelog for the PlayBook version, however, the smartphone version says an issue was fixed where users were unable to share links and pictures. Get updated and let us know in the comments about any findings/fixes you may stumble upon!
WordPress for BlackBerry is compatible with Smartphones running OS 4.5.0 or higher, and PlayBook tablet OS 2.0 or higher. You can download the app for free via BlackBerry App World.