This big ad space in Zhongshan Park displayed massive iPad ads for the longest time, after which it was covered by Microsoft Surface ads. Just briefly, it was home to this Coke ad:
The ad reads:
和 型男 室友 老兄 神对手 一起分享可口可乐 (Enjoy Coca-Cola with stylish guys, roomies, old buddies, and arch-rivals.)
I noticed that as of this week, the ad space has been reclaimed by the Surface again.