Just came upon this thread and realized the first device looks a LOT like the one I purchased recently here for 60€, and it's now priced 80$ :
http://www.myefox.com/7-inch-efoxboo...ceb700-p-81693
Not bad, and it's 800x480 indeed, already ran into some problems with some PDFs and ebooks though, but didn't test it thoroughly (I got a Sony PRS 650 for ebooks, this one was mainly for videos).