One of the ladies on a committee I'm in just had a boy and I LOVE his name.
IMO popular names are kinda there for the taking, but if you have a child with a unique name would you be upset if someone else used it?
My DD has a very uncommon name and I'd be flattered, but I know of other mums who would be really angry.
(I'm not even UTD, and I'd probably ask her first BTW)
ETA: I don't mean to be rude about popular names. I love most of the names circulating at the moment, but I wouldn't be so concerned if there were a bunch of kids with that name.