Potty training?

My kitten is about five months old, and she uses the litterbox perfectly, she has no messes whatsoever, and she is so impeccably neat too! My daughter (6 months) will pet her, and play with her, and my kitten is so patient. She will be wound up sometimes, though, but when it comes to being potty-trained and well mannered, my kitten is very good.

I was reading about 'potty training' your cat. I was wondering if anyone has tried it, or has any information, opinions, anything, on it ? I would love to give it a shot, it would cut back cost on litter!

A very good article for information

http://www.sniksnak.com/cathealth/toilet.html

And this is from a veterinarian

http://manhattancats.com/Articles/toilet_train_.html

I was watching Shark's Tank one day (Or Dragon's Den .. I forget which one) and they had this thing called CitiKitty on it .. which essentially was a toilet training system for cats. The presenter made it seem like a good idea, and they showed a video of a cat actually using it. It seemed like a good idea, and there is no litter involved after the fist few "training" weeks