A way to tell would be to go to whatismyip (www.whatismyip.com) when you're tethered on your computer, make note of the IP, and then do the same thing on your phone. If they're the same IP, that means your phone is acting as a gateway, if they're different, well, lots of stuff could be happening.

#508, posted at 2010-09-09 12:16:37 in Cognitive Surplus