Welp, in the terms of Construct, you have made my points invalid. I thank you for the information. I was not aware that IE did not support the controller API. I thought it had. That's rather disappointing.
I understand companies want to push touch as the primary mechanism for input on mobile devices, but the lack of tactile feedback is limiting at best with mobile games. It's forcing developers to redesign input methods. That's not a bad thing, but I still haven't seen a good way to provide input for genres like action or adventure games. Perhaps many of us are to stuck in the old ways of the D-pad and such. Even Apple has recognized this to some extent.