Visitors to China are often perplexed to find that they can't access Twitter, Facebook or other sites. The reason isn't that they don't have access to cellular or Wi-Fi networks; instead, it's state censorship and surveillance courtesy of the Golden Shield Project AKA "The Great Firewall of China." Roman Loyola at TechHive recently visited Beijing and used the trip as a research opportunity to see how visitors with iPhones can bypass the Great Firewall and tweet their trip to friends back home.
It turns out to be somewhat easy; you just need to have an unlocked GSM iPhone and then purchase a SIM card when you arrive in Chin
