I can't find this deal on line yet but read about it onthe register, perhaps it isn't live yet.
http://www.reghardware.com/2011/12/06/asda_cuts_20_pounds_off_kobo_wifi_ebook_reader/I think this will be the cheapest eink ebook reader this side of Christmas
While all Kindles are tied to Amazon, the Kobo can handle DRM-protected e-books purchased from a variety of online suppliers, downloaded over Wi-Fi, and not just Kobo and WHSmith.
6 inch eink display.
Further details of the Kobo Wifi
Review of the current crop of ereaders: