Run Classic apps on an Intel Mac

There is some software, the strangely named SheepShaver, that allows you to run classic apps on an Intel Mac.

Check out the write up over at The Apple Blog.

It's kind-of like Virtual PC, but the other way around, you run it on an Intel Mac, and it creates a window in which Classic can boot up. You don't get the seamless behaviour of Classic windows sitting side-by-side with OS X windows, all Classic windows run in the SheepShaver window.

Have a look at this Screenshot for an example.

Performance isn't outstanding, as it has to emulate a G4 processor, and isn't as advanced as Rosetta in doing this, however it is pretty stable, so may be worth investigating if you have that one essential Classic app that you still need to run on an Intel Mac.