found this,not sure how real,true or made up it ishttp://www.gamingfront.net/news/571/lost-damned-release-ps3-date-revealed/
For months now PlayStation 3 gamers have been asking when will the Lost & Damned DLC come to the PSN Store?
PSW Magazine recently published an article in their magazine saying that Microsoft only had a 6 Month Exclusivity Deal for 'The Lost and Damned' add-on for Grand Theft Auto IV. This means that the add-on will be released on August 20th 2009. So everyone get ready because it will come sooner rather than later!
if true,that means MS would of paid $50mil(or $25 mil,however you want to see it)for the 6 months exclusivity...ouch,but then again i heard it broke all records on XBL,so perhaps they have made their money back
also,a few months after that date the 360 is due the second DLC
i am sure it will be a big hit on PSN,i loved the DLC and can't wait for the second one