O2PLUSSmartphone capabilities with Windows Mobile 5.0 and Microsoft Direct Push emailQuad band GSM and WiFi (and EDGE too)Good displayViewers for Office documentsMINUSIt’s the Smartphone version of Windows Mobile, not the superior Pocket PCWiFi sounds more impressive than it is, and VoIP is impossible with this version of Windows Mobile (though it’s good for web browsing) WE SAYA very nice smartphone for the businessman on the move.