Ok,- So I have only played one 1.27 game so far, but I added the no patrol switch to the ini file and expected to notice a reduction to the time that the AI took to carry out their turns. But I didnt!

In fact,-it may be my imagination, but it seems like the time I spent during the AI turns staring at a still screen with my egg-timer curser had increased.

Anyone who has played more 1.27 games noticed any AI turn speed improvement?

You will see a noticeable speed increase only when otherwise you would be forced to sit through all the animations of the extra AI movement. So if you can't see any units anyway, you won't notice any difference.

Not if you're playing on a huge map, on a computer that is 4+ years old ;) You will notice a huge difference, even when you don't see any enemy units. On my computer, the first turn in this situation would take less than a second for the AI, the second would already be a problem. By the time I made contact with any civs, I would give up and start a game on a small map.