I'm really disappointed.
This was the kind of game that when i first heard about it and then saw Will Wrights demo (must have been like 2 years ago?) i was drooling, but i knew it really couldn't live up to what i wanted. Everything was to simplistic. I wanted the evolution part to be deep and fun, it was simplistic, boring and short. Editing creatures wasn't much fun after the 3rd or 4th try (having played the creature creator i was bored of this concept long before the game dropped).
There are games that do the RTS, SimCity and Civilization elements better, their are games that do the space part better. This game is like a jack of all trades, master of none. Everything is over simplified to the point that it just isn't what i wanted.
I played it on a friends iMac (the exact specs escape me) and it was good.i also saw it running on a friends Macbook (4gigs, 2.0ghz, newest revision) and it ran good (some settings were lowered, again, i'm not sure which but it ran smooth.