He can get to the rim, but it will be tough for a guy with a 7'9ish" standing reach to finish consistently among the trees, especially as his athleticism fades.
As far as your question "Who the hell was that?", it was a lot of people over at the Observer Bobcats forum. I finally had to leave that group and come over here to better threads. If memory serves, we were weak at shooting guard in Adam's rookie year. A lot of folks wanted to move Wallace to fill another position and clear space for Adam's development as a "3", thinking he was going to be a 20-25 point guy someday, due to his high draft position. Then the next year we grabbed J-Rich.
Lately, Rick Bonnell has described MKG as a better form of David Wingate, or something to that effect, on twitter posts. It's not quite a ringing endorsement for a number 2 pick so far, but at least he will guard multiple positions. Obviously he is young, and we will see. I hope MKG and Kemba prove my doubts wrong.