Check out Ajax powered Nokia N810 Internet tablet
This tablet comes bundled with Ajax and is from the stables of Nokia. Dubbed as N810 internet tablet it comes along with an amazing 4.1 inch screen with integrated GPS receiver. It even offers 2 GB internal storage which can be upgraded to 10 GB. It offers a touch screen, stylus coupled with a slide out keyboard. Running on maemo Linux based OS2008, N810 includes Mozilla based browser with Ajax and adobe flash 9.
It fulfills your VoIP needs and doubles up as a media and music device meeting all your needs of entertainment. It has a battery life of four hours coupled with standby time of fourteen days. So at the end of the day what you get is the power of computer packed in pocket sized format. Expect it to retail for $479.