Net Gain
BIG CELL-PHONE CARRIERS make it hard for phone designers to include some technologies. Carriers lose money with Wi-Fi on your cell phone, for instance, because it lets you browse the web without paying by the minute. That's why the latest product from cell-phone giant Nokia isn't a phone: The N800 ($400, nokia.com) is a pocket-size Wi-Fi- and Bluetooth-enabled touch-screen web tablet that makes IM and VoIP (Internet phone) calls with or without video and can piggyback on a cell phone when out of Wi-Fi range.