MGS4 is being hyped up as the biggest PS3 game to date for the console, and it needs all the promotion it can get. A very limited edition PS3 will be coming to North America which is the "Gun Metal" color. As well as the limited edition has a retail price has received of $84.99 and will feature Shinkawa Artwork. It will be available at Gamestop.
Metal Gear Solid 4 LE GameStop-exclusive, gunmetal PS3 NA-bound - PlayStation 3 News at GameSpot
Lastly, the MGO Beta is coming to Europe on April 17, 2 days after the Playstation Store receives a revamp.
Metal Gear Online beta sneaking to Europe April 17 - PlayStation 3 News at GameSpot