Sun replacing wires to laser??

This is just a test but a test that Sun says is 50% more likely to fail. But with the demand for high speed data transfer this test very well could be worth it. The funding for the test was provided by DARPA of nearly $44 million.
More details:-
http://www.engadget.com/2008/03/24/sun-aims-to-speed-up-data-by-swapping-wires-for-frickin-laser-b/