I have tried 3 different messenger apps to chat via Google Talk. IM+ Pro, Gchat and jiTalk. Every time I leave the app to use another app or lock my phone and then flip back to any of these 4 apps it always has to reconnect or re-log in again for a few seconds each time. No matter what settings i try to use in these apps to stay connected, or 'run under lock screen' or 'push notifications' etc, it still always has to reconnect or re-log in every time I open the app. Is this a design hurdle with windows phone that just doesn't allow these types of messaging apps to run in the background?