Just got home and upgraded as per one of the other users on here's write up.
It went flawlessly.

Afterwards I installed the Android Market (won't even run, closes back to app screen) and the Amazon Market...so far all works except angry birds (which others mentioned doesnt work). I was able to access and download/install most of my games/apps that I've been collecting as the Free Paid App of the Day through Amazon. As soon as I logged in, it said I had a bunch of apps to install. I hit NOOOOO!! then grabbed the few I wanted. I got the Fancy Widgets Sense looking clock loaded and some other games and apps.

After I updated to 2.2.1 it's A LOT nicer looking (colorful, crisp, clear, etc, wow Android 1.6 was a turd!). It has all the familier things I'm used to on my phone, so that's a plus.
It's a LOT slower than my phone, and less responsive (Evo 4G) but the improvement in speed, responsiveness, and even the look and feel is a night and day difference than how it came out of the box a few hours earlier.

I cant wait to get more into this! I'm about to load some books I've had downloaded for a while now and had no e-reader to use them on, and see what other games/apps work on it

I'm glad to see how large the community here is, everyone is so helpful!

I'm so glad I took the chance and grabbed this off Woot last week. It's a winner (for the price that is LOL, its not my buddy's Xoom, but I also paid a FRACTION of the price). After seeing this thing, he wants an e-reader now.

It's a lot slower than