I woke up this morning to a new notification in App World to update WordPress for PlayBook. There is no word on what the update brings to the Android port of WordPress but using it this morning it seems to be much faster. Either way if you wanted to access WordPress from your PlayBook check out v2.0.7 in App World. (previous version was v2.0.5) I am hoping Automattic sees the huge demand for the PlayBook app and is working on developing a native PlayBook app!
Screenshot via BBOS (Thanks Thom!)