I also have a problem with the whole 'one for all' spelling thang Gove's bringing in, in that I do think some kids learn later, some earlier, some in one way, some in another.
My sister (Masters degree, went to Oxford, blah blah) couldn't spell to save her life at primary school - I went to the same school, had the same teaching, but was an ace speller by Y6 (and an ace underachiever at Secondary).