IAMDORIAN  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).  
(Version 1.1)

SHOTGUNWEDDINGS  Works fine looks cool and has all the options one would need for this screen saver.

Great work KranK !!!  
(Version 1.1)

FONTBOT  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.  
(Version 1.0)

PETER DA SILVA  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)"

[...]  
(Version 1.0)

CEILING CAT  It's not Quicktime, it's Quartz.

Quartz Extreme is required for this, it says so in the description, and you have a MacBook which cannot run Quartz Extreme because it has onboard graphics.  
(Version 1.0)

FYREFLYE  Didn't work on my intel Macbook. QuickTime based screen savers never do.  
(Version 1.0)