Barnes & Noble Nook

The "Nook" is Barnes & Noble's e-reader. The Nook runs on Google's Android platform, has 2GB of memory built in and a microSD card slot, and can play MP3 files, photos and more. It supports ePub, PDFs and more formats. There are two versions: one with Wi-Fi and 3G (free in the US via AT&T) that costs $199, and a Wi-Fi only version for $149.

The Nook is available from Barnes & Noble's site, for 199$ (3G) and $149 (Wi-Fi only).