The Motley Fool has a pretty harsh review of the Palm Treo 700w.

"I've had my Treo for several months now, and while I'm by no means a power user, I like my gadgets to work as advertised. But, as is typical for a Windows-powered device, it's buggy as all get out. When connected to the Internet through Verizon Wireless Broadband Access, the system will bog down or freeze; sometimes the Treo just won't start up. In both cases, you need to remove the battery to get it to reboot. That nifty touchscreen is a real boon, too -- except when you use the phone as a phone and it touches your ear. That causes it to set alarms, change time zones, and unintentionally bring up all sorts of programs."

"Having used a number of Palm devices over the years, I hoped that the Treo 700 would build upon those successes. Though Verizon has a monopoly on branding with the Treo for the time being, it seems that the fly in the ointment here is Microsoft's operating system. It's enough of a hassle that, considering the Treo's $400 price tag, I've thought of firing up my old Audiovox phone, which I got for free with my phone service. At least it didn't limit me to 160 characters in a text message, unlike my so-called "smartphone."

In my opinion it comes down to the OS running on the Treo, the Palm OS is a much better mobile OS for a phone. It uses memory more efficently(no multitasking), programs are smaller, and there have been more Palm OS Treo revisions to get it near perfect. While I think this is a harsh review, the Treo 700w is selling like hot cakes because Windows Mobile users know the Treo is the best smartphone out there. Hopefully the second revision will be better, but a lot of the short comings on this Treo are due to Microsoft's OS, not Palm. I guarantee that the upcoming Treo 700p will outshine the 700w, as the Palm OS Treo 650 does in many reviewers eyes. A Treo was made for the Palm OS.