An "ebookstore" is an online shop where you can buy and download electronic books (ebooks) to read on devices like e-readers, tablets, or smartphones. Full definition
The Google eBookstore launched in the U.S. last December, but it has not become a major presence here and is lagging far behind the Kindle and Nook bookstores. (gigaom.com)
The device has a larger display (7»), 16 - levels of grayscale, touch screen Wi - Fi and 3G wireless access (through AT&T Mobility in a manner similar to the Kindle's whispernet) which enables computer - free access to the Sony eBookstore in the United States. (en.wikipedia.org)