For those of you who own the ps3 version of KOFXII, some good news.
From the Official KOFXII Facebook Group:
Great news, KOF XII fans! You can now download software update version 1.02 for the PlayStation 3--online play massively overhauled!
And from the forums confirming changes:
Specification changes for data interchange processing during online battles
Changes to the antenna icon during online battles
Operations with chat restrictions
Movement based on special combinations of characters(Raiden glitch)
As far as i could tell the Joe infinite also seems to have been removed, though i honestly didn't spend a long time trying it, i couldn't get it to work anymore.
No word on the Xbox360 patch yet.