Either a month after the release for the PS3, or at the same time. I thought I read the first one somewhere though. So you'll have to wait a bit longer.
They reported an estimated 1,500,000 sales on Stimulus Pack launch day. That's 23,000,000 USD. Hello bank roll?
They must be happy. Wait for PC version and psn version to come outm they will get a hell of a lot of more $$$