Hey,
the tool seems to be working in SU22, but I haven't figured out yet how to start a new camera path? I thought I had it (pressing Esc?) but when I was nearly satisfied with the new path something (maybe pressing spacebar) must have happened and now there is a crude mix of the old path with some elementes of the new one 
Can anyone tell me how it is supposed to work?
. But then that is probably not what you had in mind for Animator. I had just hoped I could use it, as everything else I have tried hasnt't worked out for me so far