That's really terrific, Mary! Definitely means that early college is a possibility, I'd say, and with scores like those, any college will probably be pretty keen on the idea.
Congratulations to him!
I've wondered occasionally if we should have advocated for DD to take the SAT/ACT in 7th, but my research on the subject uncovered what you mention-- that below a certain age, it really doesn't unlock much of anything, PG or not. Plus, we never managed to find anyone that had ever even HEARD of gifted kids taking it so early, so we'd have had to do some major advocacy to even get her the chance. I have felt mildly guilty for not trying harder, however.
(DD was 10 in 7th, so she was in this same boat with your guy.)
