All Maps in China are Transformed
There's a couple of regulations for selling GPS enabled devices in China (I am a software guy on a major PND manufacturer with products being sold in China).<p>- The map data is scrambled (GPS coordinates are encrypted). 
  - To correlate a GPS position with the map data, you plug the HW position through an encryption library (which you have to compile in a specific government building in Beijing).
- Border drawing is strongly regulated: no border line between Mainland China and Taiwan, Tibet is of course China, South East Asia Islands can't have border lines drawn and Kashmir is a big thing also with border lines.
- You can't show pure GPS coordinates
- You can't include a number or POIs in your map (mostly government buildings/facilities).<p>As a note, India as a certain degree of insanity as well: You can't export a map. Launching a PND there involved shipping a bunch of map technicians there to actually make sure we never got a map outside of India...<p>Cheers,
R