The Samsung Mondi is one of the first 4G WiMAX handhelds on the market. It runs Windows Mobile 6.1 Classic and it's not technically a phone since it has no cell radio. It does handle VoIP calls via Skype and other services, but it's first and foremost a PDA on steroids that's designed for mobile office and mobile Internet work. It has a sharp 4.3", 800 x 480 display, an 800MHz CPU, 4 gigs of flash storage and WiFi for those times when WiMAX isn't available. WiMAX is available only in a small selection of US cities and coverage is a work in progress, so be thankful for that WiFi. The Mondi also has a GPS with Route 66 navigation and car accessories included. WiMAX service is available with and without a contract from Clear and both Sprint and Time Warner will be offering it in the future.