That is indeed a good news strory in this magical time of Christmas and Haukkah! I have an adopted brother whose mother recently sought him out and it was a great experience for all involved. He had never intended to meet his bio "family" (always said he "lucked out") but it was one of these wonderful stories where everyone involved did well and he found a half brother as well. (It around Christmas too a couple years ago).
I hope it is as wonderful an experience for you as it was for him (and us!)