Nope, it has happened most often with no bluetooth device connected. It was just the fact it did it while hands free on bluetooth that made me think it might actually be a thing. Previously I thought it was maybe user error (hit the hangup button then accidently hit the recent dialed list and trigger a new call). But it's pretty hard to do that when not touching the phone and just using a basic handsfree profile with the car.
Common apps are very possible as they both use the same google account for app purchases (but no contacts associated with that account). Additionally my wife and I have very different usage patterns. She almost exclusively used the phone as a phone, occasionally txting and is just starting to use email (via K9 Email client) and web browsing. But no app usage for her other than a weather app I setup for her and that she just checks the weather. On the other scale is me, plume, google plus, k9 email, firefox, weather, thermstat control, and a few other apps I use on a regular basis. But again, it seems to always happen after making a call, hanging up, and then leaving the phone alone. Very odd.
Carrier is T-Mobile, but both phones are unlocked non-carrier phones (purchased direct from either google or motorola) so no carrier added bloat.
Yeah, really weird. When I have some time I may try and see if I can't trigger it to happen on purpose, but I fear that will require a lot of calls to my self...
