I have the app on the G2 but I don't think there is any bluetooth communication going on. It isn't updating until I am syncing the account by being close enough to my base station, and then the app will have the updated steps next time I open it up. So, basically the app isn't updating until I'm back to my computer and near my base station. Nothing "on the go" as far as updates, unless I just am not figuring it out.