I'm headed to China soon on a business trip and would like to get a prepaid data SIM to use with my iPad 2 while I'm there. I know I could probably go to any electronics market and get this done, but as a very obvious foreigner I am sure I would get ripped off. I could ask my Chinese coworker to help me, but I'd rather not bother her if there is a better option.

Is it possible to get a SIM at the Apple Store in China? That would be my ideal method of going about this.