There will be some class actions against Keurig on this one (and I am a big fan of Keurig). I think their success hinged a lot on the easy availability of the K-cups in nearly any variety and anywhere from Walmart to your local supermarket. But now they want to limit which coffee you can buy by adding Coffee DRM.

I should mention this is for brewer's version 2.0, so your existing brewer is fine and will continue to use the normal K-cups or your own coffee through the small basket.