It's been a big day for hedgehog fans. Along with the Sonic 4 reveal today, Sega has also let slip that Sonic & Knuckles is now Wii-bound at long last.

The 1994 title is a follow-on from Sonic 3 story-wise, continuing the journey of Sonic as he takes down the Death Egg, and Knuckles's path as he reclaims Angel Island after learning of Robotnik's treachery. It's also the last title in the original series, setting up the story for the events of Sonic the Hedgehog 4.

There's no word yet on whether Sonic & Knuckles will come with the lock-on feature at all (used to gain Knuckles in Sonic 2 and Sonic 3 and Knuckles) or if it will be a standalone title, although the Japanese VC release does have the connectivity in place. However it turns out, Sonic fans certainly have a lot to look forward to in the coming months.