I picked mine up at the union square best buy as well. I'm debating returning it just so I can get the grey version, white is cool but I feel like it will get scratched and marked up.
I am also looking for a case and I would love something like the Ipad 2's smart cover, I just want something there to protect the screen as i pull it in and out of my bag.
Overall the device is great, you obviously can't go into it expecting the same fluidity as you would get with IOS and the ipad 2 but then again it only took me a couple minutes of playing around with the ipad 2 to get frustrated with the interface. Its ridiculously thin and light, I feel like this is the future of technology, a device that can do anything but is just literally a screen in your hand.
I havent had any of the wifi issues mentioned above but there are some issues that have become apparent. First there is significant keyboard lag when typing into some text fields on websites. For instance typing right now has a fair bit of lag (I'm on my tab). Secondly, and i cant believe this issue hasn't received more press, is the Tegra 2's lack of rotational hardware acceleration. This means that if your not holding it in the default view which is landscape with the camera on top you get a significant drop in frame rate across the board. This makes swiping between home screens choppy, choppy app drawer scrolling and choppy multitasking scrolling. This is a documented issue and I believe many thought the problem would be fixed in 3.1. Thankfully there is a lock rotation switch right in the notification bar settings so I just stick with the standard view and everything stays smooth.