I just read an article about this in Nephrology News and Issues magazine. I hope it comes to be but I'm cynical--dialysis is a huge moneymaking business so I imagine it'll be a long time of it ever gets approved or tested in humans.
Yeah it is a ways off but it makes me happy knowing that future generations will not have to go through dialysis. It's just a matter of time. Even though dialysis is BIG business Medicare is sick of paying 80% of the treatment costs. And who ever gets the patent on the "thing" that will end dialysis will be able to buy a house right next to Bill Gates.