I am a happy owner of a Sony PRS-600. The only thing against it is the glare on the touch screen. Other than that, is is a sleek, sturdy and smart design. Today, I might go for the nook as the separated LCD/touch makes it more readable, but it is not as well designed as Sony’s. Maybe the color version, but then, eInk really reads good.
Now I think if something is free, it is free, and if not, well, let it go or pay for it. In content, this is often translated in DRM. In layman’s terms this means the content is bound to a key stored in the reader. Different key, no luck. This is actually a flawed design. If my device cracks, I am out of luck. I might get new downloads of my purchases providing my new key, but maybe the store went out of business. Some DRM schemes even phone home once in a while and if the mother ship is gone or has decided your content needs to self destruct, bye bye content, If you think this is unlikely, or unthinkable business practice, do your research (Microsoft and Apple respectively).
So, any content I get will be decrypted. Not give away and thus steal from the author/publisher, but to ensure I can read it as long as I like, instead of as long as they like, thank you very much. Content that I cannot decrypt I will not, never, ever pay for. For the interested, let me just say it is doable as long as you are not afraid to use python and the command line. For my Ubuntu, I only needed to install tKinter, which Ubuntu’s software center did just fine. This nice toolkit will do all the heavy lifting for kindle (device and mobi), Barnes and Nobles epub, Adobe epub and a few others. Calibre then will convert almost any now freed format to unencrypted ePub.
ps: note that for the generation of the Barnes and Nobles decryption key, you need to have the buyers credit card number. Even more reason to only decrypt your OWN files.