Ok, so finally, someone come up with a way to regulate book check outs that does not require some impossible to use software (yes, I am looking at you Overdrive!) or DRM. A Mexican publisher has found a way to make the ink disappear in a few weeks, making the book then unreadable. Nice to see some innovation instead of the same old publishers trying to regulate 21st century content by 20th (and 19th) century methods.
Definitely a step in the right direction for media. Think about how this could work for schools–you ‘rent’ a chapter in a text for a couple weeks…then you could get it back to review for finals, before it erases for good. Would really like to see this type of thing on a larger scale.