Sine Mora is a "dieselpunk" shoot-em-up developed by Digital Reality and Grasshopper Manufacture. Like damn near everything Grasshopper does, the game has been a hit on Xbox LIVE where it launched in March, and soon PlayStation 3 owners will be able to get in on the action, too.
The game boasts more than 60 combinations of planes, characters, and devices that let you manipulate time. If that's not enough to entice you, the soundtrack is composed by the acclaimed Akira Yamaoka (Silent Hill series, Shadows of the Damned), and boss battle set pieces are lent a hand by anime director Mahiro Maeda (Final Fantasy: Unlimited, The Animatrix, Kill Bill).
Sine was also recently revealed as coming to Vita.
No release window beyond "soon" is known as of yet.