The Cingular 2125 is a Windows Mobile 2005 (WM5) Smartphone with Windows Media Player 10 and an excellent QVGA (240x320) screen. If you have Windows Media Player you can easily sync music and videos to the phone, if you have a Windows Media Center then you can sync television and movies which is handy for long flights. The phone supports "Flight Mode" which turns off the phone portion making it okay to use on a plane. This has been one of teh best phones I've owned, the email push works great if your company uses an Microsoft Exchange server, not as good but works very well is any POP3/SMTP server.Pros:WM4BluetoothGreat screenMedia integrationEdgeCan be used as a teathered USB modemCons:No Wi-FiHump at the top isn't very stylishProcessor could be a little faster