Back to the actual diving comment.........
I think it's a very dangerous element to add to the game. From a cynical point of view i see it as a "legit" way for the comp players to gain an unfair advantage at a level and consistancy players will never reach. Its a replacement for the scripting.
And it could also be another cutback goal type element for online. Although with all the crappy lag timing it would be more like russian roulette. But even so, people will be going round trying to master it, and quite a few most likely will. Leaving online matches to disintegrate into cutback/diving matches.
A few of the magazines (or maybe just one, cant remember) have said that it doesnt "break" the game. But again you can be sceptical about how much they have actually played to really find out how "well" it works in the right, trained, hands.
Either way, i think we can safely assume this will just be another feature konami adds and then removes from the game for the 2009 version.
Imagine playing in a high tension match against a mate and instead of losing the match to a good goal, or a script which is less likely in multiplayer, you lose to a crappy dive. Im sure there are gonna be quite a few punch ups with some, i know i always feel like punching the actual footie players for diving. How handy would it be to have the bastard sitting next to you