My wife got a Nexus 7 and set it up on a separate Google account. We decided to add my account to her device and delete her original one. So far so good. But if I log into Google Play with my account, which should now have both Nexus 7s appear, there is only one. Looking in the settings on the play store, only one shows up. If I choose to get an app from the play store from the web interface, how will I direct it to one or the other? We don't necessarily want it to go to both.