The problem with mouse is that there is no mouse on the phones.. Touch behaves a bit different than a hovering and moving mouse. At proper size settings, the mouse touches seem to respond better. One option that i am playing with right now is to expose  touch events via different APIs. But that requires mods to the scripts.

And the Run button would really be good on the editbox..I felt that myself. It will make it in the next revision for sure.