Amazon Kindle 2 US edition
6" diagonal E Ink display, 600 x 800 pixels at 167 ppi, 16-level gray scale
The Kindle 2 is an updated version of the original Kindle by Amazon. It's a wireless e-book reader that downloads books via an EVDO/CDMA network. It has 2GB of memory (and an SD slot). Beside books the Kindle also supports many newspapers and can access Wikipedia. It is available now for 189$.
The E Ink display has been upgraded to 16-levels of gray (from 4). Amazon also offers an International version, which also costs costs $189, but each non-US download costs 1.99$.