I heard this from a very good source yesterday. 2012's year group going into Y7 this year is pretty small; pretty much every secondary school in my county is admitting fewer than their PAN allows.
The result is that the grammars are taking students who have not even passed the 11+ in order to get bums on seats.
So if you are pro-grammar then an appeal (although probably already too late) is well worth it.
Of course if you are anti-selective education it means that even more of the higher achievers have been creamed off.