As you may or may not know, Christian Whitehead, AKA "The Taxman" from Sonic Retro, has developed a Sonic game engine (called the Retro Engine) that is meant to be incredibly faithful to the old Sonic games. It is now seeing official use by SEGA in that it is being used to fuel the Sonic CD port coming to Xbox LIVE, Playstation Network, mobile devices, and possibly more. That's right, it's a remake - not a poor emulation, but a faithful-to-everything remake. Of course, the use of that engine means that physics that (at least reportedly) are dead-on to those of the original game. There are two different soundtracks that will be available (USA & JP/EU) as well as a choice as to how the spindash works: Sonic 2-style or Sonic CD-style. The special stages look a bit nicer now, using properly scaled UFOs and such.

Oh, and one of the Achievement names is a Back to the Future reference. I love it, even if just for that.

I just Googled him... his work sounds quite impressive. But why is it coming to everything except Nintendo systems?

Well, not sure about the 3DS, but the WiiWare software size limit makes it impossible to work with that.

Well the 3DS probably has stricter limits than the Wii so that makes sense. Kinda neat that Sega is using a fan engine, but then again I don't think people would trust Sega otherwise lol

In our podcast we even found out that you can play Sonic CD on a Cow's udders!

http://www.youtube.com/watch?v=vuoHqn3vqho