You may or may not know the name SuperVillain Studios. Founded in 2004 by a few ex-Neversoft guys, the studio started with outsourcing for levels for Tony Hawk (the two founders were both heavily involved with the series).
They also created Dungeon Siege: Throne of Agony (PSP), the flOw expansion pack (PS3) and are currently wrapping up flOw for PSP. Oh yeah, they have an untitled Wii project that probably has a lot of things exploding.
Goingsony.com interviews the developers about their work on flOw and beyond.