China and Hong Kong: One country, two Google maps

Shanghaiist reader Jonas writes:

Interesting to note that road maps for China (incl. Taiwan) sits only on the google.cn server and not the google.com/ maps server. Hong Kong however is on world-side, and not on the China side. The country (minus HK) is still blank on the 'world' map.

One country, two planets...

Kind of reminds of being in Dandong, in Liaoning Province, on the North Korea border. So much life on the China side; so much nothing on the North Korea side. But we don't think Google had anything to do with that ... or did it?