Not to my knowledge. And I doubt they’ll allow this to happen for a few reasons. One, Flash exploits exist. Two, it pulls Facebook into MySpace territory which is the exact opposite of what they want to do (you know someone will make up a flashy crazy profile flash thing with sounds and all sorts of garbage). Three, it would quickly be ignored as a profile picture and people would start using it to advertise their stuff or make games or such other things, which is also what Facebook doesn’t want to do.