Kindle 2011

The Kindle 4th edition (Kindle 2011) is Amazon's cheapest reader at $79 (ad-supported). It has a 6" E Ink Pearl 600x800 display (non-touch), only 5 buttons (plus next/prev pages buttons), 2GB of internal memory (about 1.25GB available), free cloud storage, Wi-Fi and a USB port.

The Kindle 2011 is shipping now: $79 for the ad-supported version and $109 for the non-ads variant.