That's an interesting thought, but after re-examining the song (with Iverson in mind), I truly think he was coming at Skillz.

Two Reasons:
1. He said "I don't know what you look like".. and I'm sure he knows what Iverson looks like, but he may not know what skillz looks like. But then again, this could just be a weak ass metaphor.

2. He said something along the lines of "Stop trying to be in my league".. and Iverson is technically in his league. (Not to mention Iverson scores MORE points than shaq)

Whatever the case, I am glad he said he rhymes just for fun, cuz if skillz got serious it'd truly be a wrap. But the next question is why would shaq come at skillz?? Did skillz mention something about one of his celeb friends in the rap up??