They were a little skittish about demoing the Cover Flow feature, but up close, the Nook makes even the relatively benign-looking Kindle 2 seem like it was beaten with an ugly stick. Pictures galore below. Update: And video!
Apparently the back cover pops off to get to the microSD slot. It might be thicker than the Kindle, but not enough to matter. The LCD is surprisingly nice, though the viewing angle isn't super wide or anything, as I found out trying to angle around the crowd. But yeah, it looks like what an ereader should look like.
Here's a quick touchy touchy video: