> It create an adhoc device-to-device wireless connection and the files are sent that way. So the two phones don't even need to be on wifi or be on the same network at all.
Isn't that just Wi-Fi Direct? Which I understand establishes a separate, dedicated temporary network for that task over Wi-Fi, with the two devices being the only ones connected to it? Isn't that still two machines on the same network via Wi-Fi, merely separate from prior networks they may have been connected to? How can you claim there is no local network or that the device doesn't need to be on Wi-Fi at all? Surely they need both a local network and Wi-Fi? Or are you referring to Bluetooth-only transfers?
In any case, my point obviously wasn't that I my home router has to see the packets, but whether/when servers on the internet become involved...
