Common wisdom states that a jack-of-all-trades tends to be a master of none. With this in mind, we expected the Audiovox SMT5600 to be able to do a lot of things--just none of them too well. But after spending some serious time with this Windows Mobile 2003 smart phone, we're terribly impressed. Not only is the GSM SMT5600 a great PDA, but it's also a great cell phone and multimedia device. Road warriors will love being able to access e-mail, the wireless Web, and PIM data on the go, while the more gadget-oriented will welcome the SMT5600's ability to seamlessly integrate with Windows Media Player (WMP) 10.0 for synchronizing multimedia data such as songs, pictures, video, and recorded television.