Sonic Generations -- SEGA's latest attempt to prove that Sonic isn't a waste of space -- has been listed for 3DS and PC in a recent financial report. Still no love for the Wii, unfortunately.
This is unconfirmed, but a 3DS spin-off is hardly surprising, as SEGA is known to put out multiple games with the same name on portable/alternative systems. Not to mention, this is the second 3DS listing we've seen. The PC version is a little more of an eyebrow-raiser, but it's cool news is true.
These are things that have been seen.
Sonic Generations Listed for 3DS [andriasang]