Maybe it's because I've been playing Civilization from the beginning, or that I have enjoyed them the most on my PC, but this game was not very good. I couldn't get into the interface, it was a tired reinvention of other strategy games on the DS (Age of Empires for one), and it wasn't as deep as I had hoped. I have a hard time finding good strategy games for the DS, and it might be that I can't suspend my expectations based on the PC versions, but it just wasn't worth it.
The graphics suck, though thankfully its not a watered down version. Same as the PC and Xbox. The reason I got it was for when I was on the go, only to find out that the same game is available for ipod. Better graphics too. Makes this version of it pointless.