Microsoft is selling a DRM’d proprietary version of the US Constitution. For $2.99, you can download it; the license agreement prohibits printing it, and explicitly limit you to making two copies a year. (More here and here.)

Wacky, huh? Sure, this is pretty benign; the Constitution is widely available in a variety of forms, and free and un-DRM’d digital copies are, well, free. There are, however, interesting implications here; Groklaw has more analysis.