Cute. I also like the movement. It would be nice of colors could cycle in some magical way which was controlled by a logical theme. Also, replication might be allowed among secondary sprites, and having some sprites could collide only to "poof" into sparkles, falling stardust, or that sort of thing; might make it more interesting.

Overall, a nice start, and one more reason to stare in a stupor at your computer monitor whilst NOT getting your work done. Should be outlawed in all serious left-brained businesses, and a warning posted (may cause cross-eyes in Siamese cats).

Simple but well done, the movement of the sprites is so fluid it's almost spooky, as if there's some intelligence behind the motion, like someone shining a laser pointer on your screen. It's rather entrancing for a minute or two, becomes less so as they multiply. Allowing the user to set the colors would be a nice addition.

When I start it up I get a WHOLE bunch of errors...

> Iterator
Cannot create node of class "QCSmooth" and identifier "(null)"

> Iterator
Cannot create node of class "QCSmooth" and identifier "(null)"

> Iterator
Cannot create node of class "QCSmooth" and identifier "(null)"
[...]