The NYT reports that Take-Two (TTWO) will announce today that GTA IV has sold 6 million copies in its first week, generating $500 million at retail. That works out to an average of $83 per unit, but GTA IV retails for $60 in the U.S. So we're assuming that a good chunk of those sales came from overseas.

http://www.alleyinsider.com/2008/5/ny_t ... week_ttwo_