Does the AppGameKit use built in emulators (or simulators) for testing apps or does it require developers to use WiFi with real devices such as smartphones, iPads, etc... for testing their apps?

Jason

Emulators are provided through the platform development kit (Android SDK, Xcode, etc).

AGK is run in a VM so you can test your code on whatever platform is your favorite (Windows/Mac). If for some reason it doesn't work on your target device then it's most likely not a problem with your code but a problem with the VM on that device.