Careful, you don't want to start a flamewar.
Back on topic, I find these days on a laptop, without a numpad, that I cope fine with using the mouse for moving, but the keyboard is still helpful for casting spells. Actually, I don't have a mouse either, it's really just a swishy thing (it has a proper name, but I don't care to learn).
The next generation of Avernums should support touch screen.