yesterday i do a chat for mobileme advisor due to problems i encountered miss recieving some emails. Advised me to do that, do this, and nothing happen until she escalate to the senior advisor....there come to a point in our conversation that he mention that my problem "maybe" or "it could be" due to the spam filter they just upgrading now/recently.....
so maybe really there is an heavy liftings on the background...
I'll give them another day or two to sort it all out.
MM does need a good spam filter. I love the one Gmail uses, it works great. I hope Apple comes up with something similar.