Courtesy of Gamefan Online - new information on Sonic Shuffle has arisen! The article is as follows:

New information has surfaced on Sonic Team's Sonic Shuffle... The game (which is basically a rip-off of Mario Party with Sonic characters and cell shading, that neato graphics technique used in Jet Set--er, Jet Grind Radio), is scheduled to hit the Dreamcast this November, and will feature five boards, each of which takes place in a distinct zone from the world of Sonic (Magical Train, Firebird, Nature Zone, etc.). Sonic Shuffle will also come with tons of mini-games and trivia, multiple board paths, eight playable characters and online capabilities, so there's a lot of gaming to be found in Sonic Team's latest. We'll let you know how it plays when E3 kicks off later this week...

Source: Gamefan Online