Will be interesting to see if it goes anywhere.
Tiny Channels Take Salt From Seawater : Discovery News
Okeanos Technologies » Our Technology
Being sold as the panacea to water
problems throughout the world (guess that makes good advertising) but could be interesting to sailors as well.
At 22 micron channels would probably take a 2-5 micron pre-filter, but those get used in front of RO anyway. Doing away with the membrane and the high pressure pump sure would be nice.
One to keep an eye on (but don't hold your breath).