An XBLA/PSN port of Dreamcast classic Sonic Adventure 2 was announced during Sega's Sonic Boom event at this week's San Diego Comic-Con. While details remain sparse, the shaky-cam footage above shows the port as part of an ongoing Sega Heritage initiative and gives the game a "fall" launch window. It also shows a massive crowd of Sonic fans freaking out, which is incredible on several levels.

Should this be the same Sonic Adventure 2 port that briefly showed up on the Xbox Marketplace last month, it'll be an HD remake, rather than a straight port, though the logo seen in the video above lacks any sort of HD branding. We'll update as soon as an official missive arrives from Sega with more information.