I found
this article via Slashdot, and I think we reported on this here earlier. Basically HP researchers have come up with a new technology to reduce the power usage on mobile devices. They targeted the display, which is still the main culprits of battery consumption, and developed an intelligent solution that automatically dims unimportant pixels, portions of the screen that are not in use.
The results are astonishing: On an iPAQ PDA, "display battery life lasted from two to 11 times longer, depending on what the user was doing. What's more, 95 percent of users said they preferred the new interface, even without the energy-saving advantages."
Fine work you did, folks from HP. But please - hurry up! We've talked about so many breathtaking inventions; alas, most of them have still failed to materialize in commercial products.