I've setup a dozen Treo 600s and 650s for clients.One client bought a 700w and one of his employees bought a 650.I setup PC Monitor to sync their Exchange accounts with Verizon Wirelesssync, and then configured their Treos with Verizon Wirelesssync.Although the 650 user has had to reset his PC a couple of times in the past 10 weeks, he's pleased with getting/sending mail via Verizon Wirelesssync.My client with the Treo 700w however, is a completely different story. He's had problems every week, sometimes more than once. Verizon Wirelesssync tech support finally admitted that 'Push' doesn't work reliably with the 700w and had me reconfigure his handheld to poll their server for mail!That doesn't work much better.