Season 2
I didn't think it was possible, but this was actually renewed.
I actually kind of liked season 1 -- mainly because Shaq is such a great personality. However, I thought the ratings weren't good enough to even think about a 2nd season. The last thread on this board was in November 2009 -- that kind of tells you how unexcited people/IMDb'ers are.
I haven't watched ABC since the Lost finale so I haven't seen any promos for the new season of Shaq vs. It caught me out of the blue when I saw tonight's preview guide. I'm happy I get to see more Shaq.