Estimated Systems Reqs.
During a chat with Chris on IRC the other day (which I was unfortunately absent during), he apparently mentioned that Darwinia will require about a 1Ghz processor and a fairly decent graphics card to run. Chris mentioned that he was developing the game on a 1.6Ghz machine, and that it runs fine, so if you're somewhere in that area, you should be fine ;)

Remember that these are just a rough estimate at the moment, and aren't the final Requirements, so don't go rushing out spending hundreds just so you can play the game just yet ;)