I'll be switching from Verizon to ATT when I can get my hands on an iPhone. Currently, I use a background program on my PC at work (don't worry, I'm all Mac at home) called Wireless Sync from Verizon that pushes my Outlook mail to my Treo 650. Works great. The comparable ATT product is called xPress Mail; does anyone know if this will work with the iPhone? My guess is we may not know until closer to the 29th, but if there are any insiders out there; I'm curious.