How to Disable Frame Rate counters on windows phone 7 app screen
Just add this code in the code behind of Page you want
public MainPage()
{
InitializeComponent();
Application.Current.Host.Settings.EnableFrameRateCounter = false;
}
4e5d660d-2aca-4043-b8b2-ea17bea67f40|0|.0|96d5b379-7e1d-4dac-a6ba-1e50db561b04
Windows Phone 7
Frame Rate, Counter