Why don't you have a look at the BeBook Neo eReader, and this one has a claim of being “the world’s first Wi-Fi e-reader with access to eBook stores worldwide”.

It has a 1600mAh Li-ion battery (good enough for a 3-hour charge), and a 532MHz Freescale processor.
It also has 512MB of internal flash memory which is expandable upto 16GB with an SD card . It can support Supports the most popular eBook formats such as: EPUB*, PDF*, TXT, HTML, RTF, MOBI, CHM, PDB, JPG, PNG, GIF, BMP, TIFF (*including Adobe DRM, compatible with Adobe Digital Editions). It’s got a 6 inch touchscreen and will cost about $299.