Well it is the most populous country in the world and all.
The most impressive point won't be when Chinese GDP surpasses the US, but when Chinese GDP surpasses 4.2*US GDP.
India, however...
[1] http://en.wikipedia.org/wiki/List_of_countries_by_GDP_%28PPP...
The US remains the landmark.
[1] http://en.wikipedia.org/wiki/List_of_countries_by_income_equ...
I'm not. Why on earth would you think I meant that?