Diplomacy, the computer game

My videogame testing friend Sal IMed me this link: http://www.gamespot.com/pc/strategy/diplomacy2005/index.html?q=diplomacy. Three points:

1. It has a single-player mode. I wonder if they've been able to program the necessary intelligence/cut-throat nature for the computer.
2. For the multi-player mode, how much time does a turn take? As you know, Diplomacy can take a hell of a long time, but it can't go fast.
3. Why on earth does it have 3-d graphics? Pointless.