I actually have a Blackberry Playbook (I realize you don't know me, so it doesn't invalidate your claim). It is really nice hardware. The OS is a little weird in places, but it is very fast. The killer is there are so few apps that I want to download. Discovery of useful apps in their store is not very easy either.

It is sad. Mostly use it for email and web surfing.

I've been running Windows 7 (MSDN final) on Snow Leopard bootcamp since it came out. So not sure what this "update" adds. One problem I did have was with the mini-dvi to VGA adapter forcing it into 640x480 resolution, but that appeared to also be an issue for Vista. Hopefully they finally fixed it!