Hey,
I'd second reading Ruf's book. It helped us out a bit in understanding DD7mos. I also found
this website to be useful. Hoagies is also good. From what I've read giftedness is most accurately tested at 5 years old or older but if an infant/toddler is showing advanced skills across the board it's a pretty good sign that they are gifted.
Something else to think about. Were you or your partner gifted? Maybe some family members? Another thing that I've read is common in many gifted babies/toddlers is an intensity to them and early alertness.
Early advancement in a single milestone doesn't necessarily automatically mean gifted. As my husband likes to point out he has some cousins who were walking already by 7 months and they were really dumb (his words NOT mine...). I can't really say by what you listed there but maybe check out those websites and that book and it will hopefully give you a better insight into your baby.
