Dave Pottinger

2 new interviews with Dave Pottinger were made yesterday, one at Gamespot and one at IGN.Some new information about the game engine has been revealed, including hints on system requirements, population cap, physics and visual effects.
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In the recent interview by Shacknews with AOE3 development team, Dave Pottinger (lead programmer of AOE3) mentioned "ESO2" and "several very large innovations/extensions for the multiplayer gamer":

Dave Pottinger (Lead Programmer): Multiplayer has actually been one of the most stable pieces of our development this time around.