Here's a question for everyone, and it's designed to see just what the AI can/or will do. I'm leaning towards the AI actually being able to use AS the very first time it's enterable (IOW, the turn after the transfer, if there was one) or barring that that it has a one turn AS while we have two.
Have you ever had an AI city that had multiple fighters and destroyed them all? Next did you lay off the turn after and bomb them again on turn three? Because if this two turn AS is true for the AI, he shouldn't be able to put up AS when you bomb it again, though there will likely be planes there. IOW, you bomb turns 1 and 3, and there shouldn't be any resistance turn 3. I have encountered AS in this situation before, but one thing can make determing the AI AS activation time difficult, and that's if he rushes a plane on turn 2.
Note, if the AS activation is the same as ours, then in this scenario you should NEVER have more then 1 plane doing AS on turn 3. If this rally point idea is true though, he could have unlimited AS there should he choose. The point isn't so much whether the rally point works or not, but whether the AI will use it for air.
Also, come to think of it, this rally thing makes sense anyway, though I've never used it. It in effect, with instant travel units, makes it as though the unit were produced at the new location. It's my guess that the AS takes just as long to become active, but that it gets up a turn quicker:
Typical Way
Turn one: fighter produced in city A, then transferred to city B.
Turn two: fighter switched to AS.
Turn three: fighter now AS'ing.
Rally Point Way
Turn one: fighter produced in city A and transferred to city B without human intervention. Fighter in city B is given AS mission.
Turn two: fighter now AS'ing.
Does this sound right? Anyone have more than 1 AI fighter on AS on turn 3? Remember, all the enemy AS was destroyed on turn 1, absolutely.