gekkokamen on 02 April 2010
http://www.gamestop.com/browse/search.aspx?N=0
http://www.amazon.com/gp/bestsellers/videogames/ref=pd_dp_ts_vg_1
The game dethroned Final Fantasy XIII (PS3) from the first spot on Amazon while being PRE-ORDERED just one day after FFXIII released. It dethroned FFXIII on the gamestop list the day it released and it's been there since. Currently it shifts between 3rd and 4th place (taking account software only) in Amazon.
I don't know if that's enough indicative of strong sales, but I bet this site has it quite undertracked for USA.
