Anyone else aware of this:

11 Dec 2012
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China: Shanghai, Beijing authorities to implement new visa regulation for transit passengers from 1 January 2013
The Shanghai authorities on 9 December announced plans to revise visa regulations to allow 72-hour visa free travel for transit passengers passing through the city's Hongqiao (SHA) and Pudong ( PVG) airports; the move comes three days after officials in the capital Beijing issued a similar proposal. The proposed change will allow citizens from 45 countries, including the US, Australia, Brazil, Japan, Russia, South Korea, Qatar, and most EU countries, to travel within Shanghai and Beijing cities for a period of 72 hours without prior visa approval; Shanghai authorities currently allow visa-free transit for 48 hours for citizens of 32 countries.
Travellers using the visa-free facility must be in possession of adequate documentation, including proof of an onward ticket to another destination. The visa change is expected to take effect from 1 January 2013 in both cities.
Travel Advice
• Visa regulations for both tourist and business visas vary depending on the nationality of the traveller and the nature of their visit to the country; personnel should be aware that this new proposal will only apply to transit passengers and only for certain nationalities.
• Travellers should check requirements with their local Chinese embassy or consulate well ahead of their intended visit.
• Personnel should ensure that they are aware of their specific visa rules and abide by all visa regulations; carry all relevant documents to present to the authorities where required.
• Personnel should obtain a proper China visa for all visits. If caught with an incorrect visa, or overstaying a visa, personnel may face immediate deportation or temporary detention.
• Carry identification at all times. Copies of residence permits and the identification and visa pages of passports should be accepted in most cases. Consider carrying a card stating your particulars in Chinese (in characters, not romanised form).