Retail Release Date?

[1Truck]

I saw all the release threads, but like I already said, none of them had the RETAIL release date. Look up the game on websites like Gamestop, Wal*Mart, Best Buy, Target, Amazon, etc., and the game isn't listed. I was wondering about the RETAIL release date, the date that it will be IN STORES. I realize it will be released ONLINE April 16th. Like I said, the 1C company website:
http://www.1cpublishing.eu/game/rig-n-roll/overview
says:
7th May 2010. So I was wondering if that's the day it's being released in stores, or if it is at all. The only release date given was the online distribution of the game.