Plastic Logic recently demonstrated their e-reader device at the DemoFall conference. Unlike the other e-readers on the market (like the Amazon Kindle), Plastic Logic's device is all plastic, and has no glass that can break. They claim it will weigh less than a pound, the battery will last for days, and that it will have input/markup features so it's more than just a reader.
At this point they are not available for sale. But they do have a factory in Germany so they should be closer to production than if it were just a prototype coming out of the lab.
The Plastic Logic home page currently has a video of the CEO demonstrating their device.