The new Multiplayer system uses a live sync program, similar to Slitherine's MP server system. I have tested it with Dropbox and Windows Live Sync. When two people are sitting at their computers with the game running, the turn exchange is so fast as to be like TCP/IP.
Curious here if Matrix/Slitherine resources could be tapped to add this capability to EiANW. Seems like it should be easy enough to port to any game to take a player turn, put it into a live synch, pass it on to next player, repeat. This should be something Matrix would want to encourage, ie providing generic administrative code to its game developers so the wheel doesn't have to be reinvented all the time? Perchance to dream...