Thanks for playing the game!
I didn't consider the mousepad movement, it's true that it must be horrible. I have some ideas fo change the control and the basic attack, so we'll see how it integrates with the current controls.
Mobile I think works, the only thing is you wouldn't be able to see what you are buying before clicking on the upgrade, I'd need to change the behaviour of the skill tree a little to accomodate for that. But that's not necessarely a bad thing :)