UPDATE: I’ve been informed by fellow staff member nuckles87, that the DLC pack is already available on Xbox Live Marketplace and I too can confirm it is available. Edward@Sega officially confirms this on the SEGA of America blog, along with some details:

Final piece of news: there is also a DLC pack available for the game — if you wish, you can download it and convert this original Dreamcast version of Sonic Adventure into the “Director’s Cut” version, Sonic Adventure DX! Sonic Adventure DX was the enhanced version released on the Nintendo GameCube, and includes 60 additional missions as well as Metal Sonic as a playable character.

/UPDATE END

SEGA Japan has confirmed today that Sonic Adventure‘s Xbox Live Arcade and PlayStation Network ports will be released there September 29th. Not only that, downloadable content will be simultaneously available, that when purchased will upgrade the game to Sonic Adventure DX: Director’s Cut. This extra content will be priced at ¥500 (about £3.74) on PSN and 400 Microsoft Points on Xbox Live. No word on whether the rest of the world will see this content on the same date or not.

SEGA also revealed the Xbox 360 version will support Avatar Awards and the PS3 version will support Home Rewards, but the company hasn’t revealed what those Awards and Rewards actually are. With the Xbox 360 version out in the U.S. and Europe today, we’ll likely see the Avatar Awards revealed soon.

What Avatar Awards and Home Rewards would you like to see? Let us know in the comments.

Source: Andriasang