There are some who have the Treo700w but also signed an NDA so what they can tell us may be limited. Blueshockeynut over at My Treo.net is supposed to be getting one for a 2 week review, you can see at this thread and hopefully he can help answer the real big questions of memory and processor.
http://mytreo.net/forum/index.php/topic,23885.0.html