This deal has ended.
Buy.com has the Nokia N810 Internet Tablet for only $405.99. The N810 features a 4.1" LCD display, full keyboard, 2GB memory, wireless networking, Bluetooth, USB 2.0 interface, webcam, memory card reader, stereo speakers, integrated Internet Tablet OS, and a whole lot more. Shipping is free and there's no sales tax (except CA, MA, MD, TN). Of note: new Buy.com customers can use this $10 off $200 coupon while new Google Checkout users can get a $10 discount for signing up and paying via that service (you can't get both).