Introversion

Is Darwinia+ going to be one of the rare hybrid games for XBox 360 that plays with PC versions?

I'd highly recommend it being the player base is rather small. I don't think splitting the player base up would be very helpful for the games growth.

Just curious to know if IV is going to strive to be one of the rare games on the xbox.

I'd say Multiwinia's control scheme would probably work out quite nicely in terms of fairness between the two platforms (unlike an FPS, for example). If it's possible for them to play together, that'd definitely be awesome, but seeing as so few games have successfully implemented it in the past, I'm not really holding my breath for it.