Conclusion: If your business currently supports Treo 600s or other palmOne PDAs for your mobile workforce, or if you finally are giving in and buying a smartphone, the Treo 650 is a compelling upgrade that makes it a must buy for all but the most bleeding-edge power users.
Pros: Many improvements over the excellent Treo 600, including high res screen, improved camera, removable battery, Bluetooth. Non-volatile memory can save your PDA data even if the battery runs out.
Cons: Could use a little more RAM as well as Wi-Fi. Lackluster speakerphone performance.
Conclusion: Looking for a convergence device that gives you the best of both worlds? The Treo 650 should be on your short list. While larger and heavier than today's feature phones, you won't have to carry two devices so you'll ultimately lighten your load. The phone has great looks and ergonomics, a thumb keyboard that makes real work possible and fast Internet access courtesy of Sprint's PCS Vision service (CDMA) and EDGE service with Cingular / AT&T Wireless (GSM).
Pros: Great display, fast performance, integrated Bluetooth, good battery life by smartphone standards. Battery is user replaceable, uses non-volatile memory so data and applications will survive a complete battery drain. Doubles as an MP3 player and portable video player. Expandable via SD cards.
Cons: No Bluetooth DUN profile on carrier branded Treos (but one is coming, we're told), no WiFi and the only way to add it is via Enfora's bulky sled. On the Sprint version, there's and odd delay of a few seconds after pressing the send key to dial a number (doesn't happen on Cingular version). A high end device like the Treo 650 should have more internal memory. Given that the unit doubles as an MP3 player, why is a mono rather than stereo earbud headset included in the box?