Sega dropped us a quick note just a few minutes ago to let us know that Sonic Generations is coming out on the Nintendo 3DS, along with previously announced console versions. Specifically, Sega had this to say:
"SEGA’s much loved mascot Sonic the Hedgehog™ makes his way onto Nintendo 3DS for the very first time as part of the celebrations for his 20th anniversary. Speeding through many levels designed exclusively for the Nintendo system, Sonic Generations™ allows fans to play as both Classic and Modern Sonic across a range of iconic and memorable levels – all re-imagined for a completely new experience. Sonic Generations for Nintendo 3DS launches on 22nd November in North America."