Walmart offers the 7-oz. Barnes & Noble NOOK Simple Touch WiFi eBook Reader with GlowLight, model no. BNRV350, for $49.99 with free shipping. That's tied with Best Buy's price from last week as the lowest total price we've seen for this eBook reader new. (It's a current low of $26.) This eReader is designed for low-light reading and features a 6" 800x600 touchscreen E-Ink display, 2GB internal memory, microSD card slot, 802.11n wireless, up to one month of reading time on a single charge (with GlowLight on), and support for ePub, PDF, JPG, GIF, and other file formats.