I picked up a PlayBook on April 19th when they were released. The size and weight are great and the browser is pretty awesome. But until it 'matures' a bit I find it pretty limited. While there apps for it (and that number is growing daily) there are not any of the really good ones available...yet. (Zinio and NetFlix to name 2).
Now, I happened to walk into Future Shop on Sunday after and there was A 16gb wi-fi iPad 2 in the cage. Seeing how there was only the one and getting an iPAd 2 is still almost impossible I bought it on impulse. I wanted to compare it to my PlayBook.
The iPad bigger and heavier, but the bigger is easier to read on and and its not that much heavier. The availability of apps is limitless as I'm sure you already know. My wife and daughter have an easier time using the iPad, partly because it is a little easier to use, but also because as of right now it does more and for them the extra screen real estate makes a difference.
As for the browsers, I prefer the PlayBook simply because of its Flash capability. A lot of kids sites are Flash based and you find out just how many when you try to load up kids game on said sites. Having said that however the iPad overcomes some of its Flash shortcomings because usually "Theres an app for that" (Sorry, couldn't resist
)
I think the PlayBook has A LOT of potential and given some time will be a real player in the tablet market. But, since I got my iPad 2, I haven't honestly spent much time at all with my PlayBook. In fact, I just lent it to a friend so he could try to develop a few apps for it. Truth be told, I'll probably end up selling it to him, because as much as I like it, the user experience on my iPad is far greater at this point. I am very interested in re-visiting the PlayBook again in a few months to see how things have developed.
Thats my take on the 2 at this point.