[manymo]

The answer is: it depends. This is an android emulator - the same that Google ships with the Android SDK. A real device will probably be more responsive.

You will also have the difference of a touch based interface on a device and the emulated touch interface when using mouse-based devices (Manymo in your laptop/desktop browser.) That said, You can also use Manymo on your iPad...

In any case, having a device with the all screen size and OS version combinations does not really scale. Trying to do that gets rather expensive.