http://blogs.zdnet.com/Ratcliffe/?p=434
This article asks several interesting questions:
1. What's so great about 3G or WiFi that only works just to buy B&N books, or in the case of WiFi, works only inside a B&N store?
2. No access to Google Books?
3. A nice shiny LCD display that just displays your book covers? Who cares?
4. You're still tied to a PC to download content from other sites.
Aside from ePub support (yet another DRM), what do you really gain?