Orbitron: Revolution is, for an Xbox Live Indie game, gorgeous. The shmup, developed by Firebase Industries (and with music by Audio Antics, of Geometry Wars fame), is now out, and costs a ridiculous 240 MSP. Get on it.
Normally, one would associate (often incorrectly!) that the Xbox Live Indie Games Channel was a place for hobbyists, or beginners, where the ugly mixes with the crude for a bargain price. Not so. Especially in Orbitron: Revolution's case.