I'd like to join the chorus of those who are experiencing very long turn lags on Large and Huge boards. I understand that there's a lot for the various AIs to do, but I'm talking about enough time to make a sandwich between production windows popping up for my cities. Or a 30-second delay when I bombard my opponent and their harbor goes. It shouldn't take that long to rearrange their production.
The AI on the harder levels is utterly untrustworthy, which isn't all that much fun. It'd be nice for someone who has a Right of Passage agreement with me to at least cancel the agreement, then next turn declare war. Most of the time, anyway. It's also kind of frustrating that I can't buy friendship with my neighbors, but an AI three civs over can get Right of Passage agreements with all of them, then funnel through 20 units for an attack. I enjoy the feeling that I'm one of many factions in the game, rather than feeling like it's everyone vs. me.
Some of the unit movement sounds are in fact still irritating, the Rifleman and Transport being the main culprits.
It would be nice to have some sort of "group" command that allows me to move piles of units in unison. Alternately, it'd be quite useful to have a "vector" command, where I could tell a city that all of the units it produces henceforward should be forwarded to a staging area.
I must reiterate that the long between-turn delay is by far the most frustrating aspect. I really enjoy the complex interplay between many players, and a Huge map really isn't playable for me. I'm running:
Duron 700 MHz, 128MB RAM, Windows 2000.
Thanks for listening to feedback, I love the game, and I look forward to further patches.
