A cheap casioppeia allows me to read ebooks around 2001.
The Kindle has many flaws, but it does allow you to read a few different non-DRM formats.
The Kindle is already able to read more than just Amazon DRMed content, it can handle a number of formats.
Hacker Igor Skochinsky used DRM to load Mobipocket books onto his Kindle. Using a series of scripts, he's able to convert eBook files to Amazon's AZW format and then add the necessary serial number DRM, specialized per an individual's particular Kindle.
A revolutionary portable reader that wirelessly downloads books, newspapers, magazines and blogs to a crisp, high-resolution electronic paper display that looks and reads like real paper, even in bright sunlight.