Hi, if you haven't looked at Hoagie's yet, it is a great place to read up on giftedness... Parents Page of Hoagies
Identifying gifted kids can be easy or very hard, but I think infancy makes is quite a bit more of a guessing game.

Search on 'infant' at the hoagie's site and you will probably find some good stuff to start in reading.... have fun with your baby, and reading around here too! Welcome.