Official Playstation Blog:
"It's out in Japan, it's out in Europe, and this week: Numblast will be available here in North America!
Get your hands on this addictive puzzle game (available for both PS3 and PSP) at the attractive price of $4.99 for either platform. Based on simple number combinations, Numblast is colorful, quirky, fast-paced and easy to pick up, but only those with quick wits and mental agility will make it to the top of the online rankings.
Here's a trailer of the game in action:"