Well, starting next Tuesday, March 12, they will be available to you as a free download all the way through April 3. Featuring the look of the original VR missions from Metal Gear Solid (read that again, seriously), the pack will include 30 brand-new missions that feature unique challenges. Maybe you'll need some tips to make sure your skills are up to par?
Oh, if you've yet to pick up the game, you can now buy the game on PlayStation Network for $59.99. If that's your thing, of course. Anyway, I'm assuming there's nothing stopping me from just jumping on PSN and downloading this myself next week, you know, just in case I do ever pick it up on PS3. If I can't, I'm pretty sure this will be coming to Xbox at some point anyway as a paid download. That's how these types of things usually go these days.