testing for 'gifted' child?

My friends son turned 5 in February. He was slow to talk but at when he did start at 2 1/2 he just talked sentences straightaway, knew all the letters of the alphabet (not rote learned) and is totally obsessed with numbers.

He had quite obsessive behaviour with bus timetables which is only starting to wane now so the school recommended he wait til this year to start primary 1 despite his advanced reading and writing.

Now they are testing him to see what learning support he needs. He has been assessed as having reading & spelling level of 8.5yr, not yet assesed his maths skills but stated his memory was age appropriate at 5.5yrs. Based on these two results so far they have decided he will not need any additional support and will just go to regular P1 classes.

My daughter is just finishing primary one and he finds her homework so simple, both reading and maths. My friend is understandably concerned about him becoming bored at school. I would also like to add she has never 'taught' him anything - he spontaneously started to read.

has anyone had similiar experiences - is primary one going to be okay for him or should she seek more advice from somewhere (& where??)

thanks