the time factor...
Awesome game, and good to see the new version.
I just feel you should include the time one takes to guess in calculating the points. If you prefer not to change the game this way for everyone, then incorporate a version of the game that does and one that doesn't take time into account.
Also, looking forward to the missing parts of the world whenever pictures may become available (India, Indonesia, most of China and the Middle East, Argentina etc.) I'd also say, for the US and Australia you could get rid of the old fuzzy shots.
Keep well, and keep up the good work!