I have just learned that Kalahari.net, a South African web retailer, have added the Elonex 500EB as a platform for their ebookstore. The 500EB was just announced at IFA 2010. It has a 5" LCD screen, 2GB Flash, and a SD card slot, but no Wifi or touchscreen. It supports Adobe DE DRM, and it also reads AVI, MP3, and WAV.
In other news, Kalahari are also selling the Cybook Gen3, Cybook Opus, and the iriver Story (all of which can be used with the Kalahari ebookstore). They have also expanded their ebookstore to include digital magazines. They've signed up to be a retailer for Zinio. You can buy the magazines from Kalahari, but you'll need the Zinio to read them.