Finally, REAL hybrid-energy (consumption) computer components!
Presented at this year's CES and hopefully soon to enter the marketplace, hybrid displays will be able to switch between standard LCD and e-ink. The logic being that LCD displays are better for full color imagery, and e-ink is better for e-books.
E-ink uses a lot less energy than LCD displays. As such, its the prime choice for e-book readers like the Amazon Kindle.