SIGNa Chemistry have launched a hydrogen fuel cell, called the PowerTrekk, suitable for powering or recharging cell phones or other USB powered devices. The device uses water and sodium silicide to generate electricity and also has an internal battery which can hold the charge for later.
Intel have gone to the trouble of making a real life machine which plays music using balls hitting various instruments. This is apparently to promote the Intel Atom processor.
The start of the video looks like CGI, but keep watching to see the real machine.
This is apparently from the early 1960′s, but for some reason it didn’t catch on with the mainstream.