I just installed avast! antitheft on my note 2 and noticed the same behavior. It will turn on the GPS but it would be nice to be able to turn it off remotely after getting the GPS location. Even though it was a one event tracking, I tried going into the tracking and telling it to send a "stop continuous tracking" command and the GPS still remains on after that command as well. I'd like to request that it be updated to automatically turn off the GPS after a single locate request, turn off after "stop continuous tracking", or have a new command implemented in the web interface to "Stop GPS". I just think that if avast! turns on the GPS (per my request), it should be able to turn it back off (either automatically when done, or per my request). Otherwise I really like the software, and while I realize my complaint may be nitpicking, it's still something I hope will be added (or fixed).