[yvolution]

How maps look like depend on a whole bunch of other factors like the projection they use etc. Thus simply overlaying the maps and say, hey, this is distorted, is simply unfounded. It's very likely that Google maps etc may be adopting different projection systems so the users can have smooth using experience zooming in and out, and panning across the global without feeling the earth is round.

http://en.wikipedia.org/wiki/Map_projection

[srl]

A map projection issue could a) easily be fixed, and b) would have been noticed and fixed already, as it would manifest in more places than just china.