Star Scream on 16 February 2009
Joking aside, here's official breakdown of software sales by region - straight from Sony as well:
UMD software sales/ breakdown by territories (sell-in as of Dec 2008)
- WW: approx 200 million (197 million)
- SCEJ: approx 36 million
- SCEA: approx 81 million
- SCEE: approx 76 million
- SCEAsia: approx 4 million