I don't know how the game plays but in the FAQ it states that if you have a 1ghz Athlon/Intel you might as well overclock it to 5ghz if you want to play the game properly. (and then something about you should buy a dual core cpu)

So I kinda doubt we'll be seeing that hit the n900, although there is another strategy game engine called "Warzone 2100" or something similar that people are working on getting running that should do just fine.