Jeez guys, who cares. Do any of you design or manufacture phones? My guess is no.
So why are you so bothered about the next form factor and why are you so bothered that the smallest one should win? I can't see 1 or 2mm making any difference and the user won't notice any difference.
I don't think that the space saved is important at all, it's about being the leader of new standards.
I feel that if they want to reduce the SIM size any more then Apple's version makes...