Yao would torch this kid, but still 7'3 with pretty good mobility is a win. Doesn't look bad at all, but is kinda skinny. But he could bulk up in time I suppose. And oh yeah....woah does this guy have a serious pair of eyebrows.
If he bulks up and his game progresses amazingly, he'll be a late-late second rounder. GM's will rather take Mills at 55 than him; there are quite a few 7' (semi)stiffs in the NCAA.