According to Gizmodo, NASA is to buy $19 million dollars worth of space toilets from Russia:

So apparently NASA has agreed to purchase toilet technology from the Russian company RSC Energia for the tidy sum of $19 million, to be delivered to the ISS in 2008 in preparation for a crew upsizing from three to six members. The previous system required that urine tanks be transfered to cargo ships and burned up in the Earth’s atmosphere, but the new toilets operate like a waste treatment center on Earth, collecting and reconstituting urine as drinking water — an unpleasant concept for a number of our readers, but a welcome relief for thirsty astronauts.

I think I shall let this story pass without further comment.