The South Slope has gotten a new children’s store. In mid-March we reported that a children’s store was taking over the space of the quickly-shuttered Fashion Cafe. Well, the new store a branch of Boing Boing called “Boing!” has opened. It is on Seventh Avenue near 16th Street and includes nursing accouterments and space for nursing moms in the back as well as handmade clothes. Classes are coming. In the meantime, a review of Boing Boing on Sixth Avenue just posted on Citysearch says the store has great products but is less than complimentary about the staff, calling the some of the people that work there “the epitome of park slope stroller nazis. Uber-Mommies, everybody else is doing it wrong-i know how to raise your child better types. Blahh!” Just noting what we came across while looking for the address of the existing store.