Ran well for a few minutes on my iPhone, but froze up and then again after refresh. But very responsive and crisp. Obviously not yet optimized for touch devices

Ran well for a few minutes on my iPhone, but froze up and then again after refresh. But very responsive and crisp. Obviously not yet optimized for touch devices; have to tap and hold the scrollbar to scroll, native iOS stuff didn’t come up after text selection. Very cool and while imperfect according to other comments, this is not bad at all.