no i mean, in their list they have mentioned a model with 1GHz (single core) and 512MB ram.which is same spec as many 2011 xperia models.now if they can upgrade that, then its clear their reason for not upgrading 2011 models is a false excuse.but anyway, it does not make much difference to me, because their schedule start time for JB release is 2013 and also ICS can be rooted but JB rooting may not be that easy till someone cracks it.so for me ICS is best as of now.