I will be going to Hong Kong and China for about 2 months. I'll be in Wuhan for 1 week for a holiday. I would like to know if there are any Prepaid 3G Data Plan SIM Cards available for sale that works in both Hong Kong and China (Maybe China Unicom?). Using an iPhone 4, so I guess I would have to cut the card.
Please reply if anyone knows anything about Prepaid Data SIMs and please tell me about the price too. And would voice calls and SMSes work?