Only Bug! for now but Panzer Dragoon and Panzer Dragoon Zwei on the horizon.

GameTap is really fucking awesome. 850+ games available for a monthly subscription of under $10? First month is a buck? Word.

It's not perfect (inability to use mods, fan patches, or transfer your saves between games like Baldur's Gate I and II), but it's a hell of a lot better than PSN/XBLA/or Virtual Console.