I quite like my PlayBook, and I don't really care about OS2, in fact I think it's a few steps backwards in the UI.
RIM never properly marketed the PlayBook, and most stores you go into with a PlayBook on display haven't bothered to teach their employees how to demonstrate it, if they've even bothered to set it up properly.
It's a great piece of hardware with a pretty solid OS. I think RIM made a bit of a mistake pushing OS2 when what they should have done was improve the development tools, make it easier and cheaper to develop for it and concentrate on getting it into the hands of consumers.
There are new apps showing up all the time in App World.
I understand RIM's wanting to market the PlayBook to people who already have BlackBerry phones, hence the lack of native email, contacts, etc... but reviewers and the media quickly jumped on this and claimed the tablet to be a half-baked device and consumers rapidly jumped to the conclusion that they "couldn't email" with the PlayBook, which really isn't 100% true.