After upgrading to the latest release version of Xamarin.iOS and Xamarin Studio I cannot debug on my iPad anymore. The app compiles fine and gets deployed to the iPad and starts up ok.
However, in Xamarin Studio I do see the "Waiting for the debugger to connect..." message. In addition, the the Application Output outputs this:
Please ensure your device is connected... Connected to: iPad 1 warning MT1003: Could not kill the application 'x.y.z'. You may have to kill the application manually. Launching /private/var/mobile/Applications/F8C62D56-F457-40B6-84A2-489D57D92267/Dialer.app -debugtrack -monodevelop-port 10000 -connection-mode usb