I can deploy to the android simulator. I have an Acer Iconia 8 and want to test my app on it. I have followed the steps at http://developer.xamarin.com/guides/android/getting_started/installation/set_up_device_for_development/ and it doesn't show up as a possibility to run on. In device manager it shows up as "A1-850" under "Portable Devices". Why does it not show up as a device to debug to?