I bought a Pandigital reader from Best Buy awhile back. I'm not sure if the Android Market lets you use tablets to download their apps yet. You can put Kindle on it via Amazon. You need a SD card and have Amazon email you the link so you can download it onto the card. It will then upload into your tablet. I don't remember the exact directions, but that was the idea. It runs on the Android format.

Only problems with the Pandigital are the response time and battery life. It's actually a nice reader if you want the backlighting and fits into your purse easier than an iPad. You have full internet access as well.

The more expensive tablets have faster response times, more memory, and are better built. Pandigital also has Barnes and Noble's Nook already installed so you can buy their books as well.