so that couldn't work here?
I can't see how.
For what I've read, AIM's Push servers are keeping a live connection between their IM servers. Kind of acting like a middle man. Thats the bit that stays logged in for whatever period you so wish. It's not the phone that keeps the connection live.
FOr this app, the app will be closed when they make the connection with the phone so couldnt use the app to check if you're on a wifi network.
If that makes sense