I really don't know what the edge is that WiFi will give it. Microsoft will really have to come up with something more than just exchanging music and pictures. With all the brainpower Microsoft has I'm really disappointed in this device, in essence it is just a rebadged Toshiba player with added wifi and a souped up UI. I'm sure it'll sell in decent amounts, most likely putting the likes of Creative and iRiver out of the market in the US, but a threat to the iPod it is not.