iPhone/iPod Touch ($0.99): http://itunes.apple.com/au/app/angry-bi ... d509193195
iPad ($2.99): http://itunes.apple.com/au/app/angry-bi ... d501968250
Kindle Fire ($2.99) http://www.amazon.com/Angry-Birds-Space-Kindle-Edition/dp/B007MNV5WU?
Android (Free) https://play.google.com/store/apps/details?id=com.rovio.angrybirdsspace.ads
PC ($5.95) http://shop.angrybirds.com/us/games/pc-games/angry-birds-space-pc-version.html
Mac ($4.99) http://itunes.apple.com/us/app/angry-birds-space/id509193195
Nook ($2.99) http://www.barnesandnoble.com/w/angry-birds-space-rovio-entertainment-ltd/1109652796?ean=2940043890443
Straight from wiki:
http://en.wikipedia.org/wiki/Angry_Birds#Angry_Birds_Space wrote:In February 2012, Rovio announced a new game in the Angry Birds franchise to be called Angry Birds Space. It will launch on March 22, 2012, the game is said to feature elements from the original games as well as new gameplay mechanics. It has been announced by Rovio that Angry Birds Space will at least be on iOS, Android, PC, and Mac.
On March 8, 2012, a new footage of Angry Birds Space presented by NASA astronaut Don Pettit onboard the International Space Station was released. The video shows that the game's stage is no longer flat, instead comprising several different planets, each of which has its own gravity that affects the trajectory of the birds after launch. 
Who else has picked this up today?