Via One-ups Transmeta
An aonymous reader submitted that"Via just announced the Eden platform, which promises lower power consumption than Transmeta. If it follows the C3 line of CPUs, I'm guessing it will also deliver much better performance at a lower cost (the C3s gave significantly better performance than Transmeta, but at just under 10W, so a bit more power)."
There are more energy-hogs in a laptop than just the cpu. Display, harddisk and recently the graphics accelerators need a good share of the battery life. Decreasing the power consumption of the cpu alone won't get us very much closer to the one-day-per-charge laptop, although it's certainly a step in the right direction. Other interesting applications of less wasteful processors are clusters and servers, which otherwise need expensive cooling.