I graduated to Chameleon porn some time ago, and I've never looked back. It's the real McCoy.
Speaking of Mc's, have you seen the picture series of Gauge Chameleon on a number of clan tartans? RAR!
RE: robust presence on the desktop
I've seen one like that - very graphic name and couldn't be deleted or even renamed despite using many tools / techniques (inc booting to DOS from a floppy and dtrying to delete it manually)
in the end we used the mouse to 'throw' it off the bottom of the screen and so not have it visible - it's gone now though, new hard-drive and fresh OS install.