I won't drag this out. Everyone's looking for free stuff these days. Well, here you go. Securitales has got free trials going. They're not a VPN, but they do allow you to access Facebook in China. They work pretty well I think. For laptops, I still prefer using a VPN, but for mobile devices like iPhone and iPad, this is a great choice, especially because PPTP and L2TP VPNs are blocked.
Here's the link
When you get to the Securitales page, the free trial is right under the sign up form