Looks like I'll be saving up for the new Prince of Persia and this, since they're coming around the same time now.
One thing that bugs me about this, is they waited so long to release the system requirements, giving a lot of people the impression they were optimizing the game so well. And now this Core2Duo minimum, Core2Quad recommended crap, and a delay on top of it. So much for them spending extra time optimizing it...
On the plus side, it doesn't look like it requires a very good graphics card, even for the recommended specs.
P.S: I have a little story for everyone hoping it runs on single core. There's a little game out there called Assassins Creed. It has a minimum requirement of a dual core processor (not even Core2Duo, just dual core). I attempt to play it with my piddley little Pentium 4 3.4Ghz processor and get random freezing for minutes at a time (it always works again, but every minute or two it freezes for a little bit, rendering the game unplayable).
After researching that my motherboard is a hunk of junk, I decide to get the only dual core it supports (since I have no intentions of upgrading the entire mobo, sorry you PC elitists out there), a Pentium D 960 3.6Ghz. The freezing stopped in Assassins Creed and now it is quite playable on my computer.
Moral of the story? If you want to keep playing newer games, I suggest an upgrade. If your motherboard can support better though, please don't get Pentium D.
If you don't want to upgrade, I'm crossing my fingers for you. It could work fine.