According to Gamespot:
One of the most highly regarded PlayStation games ever made has a date with the Xbox 360. Microsoft today announced that Konami's Castlevania: Symphony of the Night, one of GameSpot's Greatest Games of All Time, will debut on Xbox Live Arcade this coming Wednesday at 2 a.m. PDT.As the first title to be brought over to Live Arcade from another console, Symphony of the Night will feature "modernized" sound, widescreen support, achievements, and leaderboards. Players will be able to choose between the original graphics or altered visuals that address sprite pixelation when the game is played in high definition.Castlevania: Symphony of the Night is rated T for Teen and will be available for 800 Microsoft Points ($10).
All I can say is, awesome.