Blue roses (and black roses) have been the holy grail of rose breeders -- while dyeing them is definitely an option, to create a natural blue rose has been until now, thought to be impossible. (Of course, the scientists do cheat a bit, by introducing a gene that is not in the genetic structure of roses).
News like this make me wonder if perhaps David Brin's Uplift Saga isn't too far off from what mankind will be able to do in the future.
Amazing. I'd love to get my hands on one someday. =)