According to EBGames.com, Sonic and the Secret Rings will be released on March 6th, 2007.
Also, it seems that if you reserve Sonic the Hedgehog for the 360/PS3 at EBGames, you get a free Sonic plushie.
That last bit may not be news, per say, but it’s still kinda cool.
Source:http://www.ebgames.com/product.asp?product%5Fid=230048