What about Visas?
72 Hour Free Transit Visas are available at Beijing, Shanghai and more recently Guangzhou. It took over 12 months of lobbying by China's largest airline (China Southern) to have the transit visa introduced to Guangzhou. So good luck too Jetstar if they are looking for the same treatment. Otherwise their cheap fare customers will be in for an expensive shock when they apply for their visa. As usual the geniuses at JQ have thought of everything