Market research firm Niko Partners has estimated the gray market in China for PS2, PS3, Xbox, 360, GameCube and Wii at 2-3 million units, reports Gamesindustry.biz.  The firm says the install base grew significantly last year with nearly 1.4 million 360 and Wii consoles smuggled into the country.  Consumers seek out the smuggled units, which Niko says are offered at full market prices, because console makers won t officially import them.  Niko managing partner Lisa Hanson told GI.biz that this translates into lost revenue for the console manufacturers.

Read more at Gamesindustry.biz.