(Engadget) Bluetooth 3.0 is going to bring file transfer in the era of high-speed short-range data transfers -- as previously hinted, the new spec will actually negotiate a quick'n'dirty ad-hoc WiFi connection between devices

While most mobile devices have Wi-Fi function nowadays, the key advantage is the ad-hoc WiFi connection is managed over Bluetooth, no actual wireless network is needed, and the switch will appear seamless to the user -- except for the sudden increase in data transfer speeds