So it still works as a generic ereader via Calibre? That seems like a pretty fine outcome. I don't think Amazon (or any company) should be on the hook supporting a device for 16 years. I can't think of any company which does. Dropping support for old devices frees up eng resources. If you've ever worked in a shop needing to support legacy devices, it becomes a huge burden to keep up support (especially as the supporting software/hardware starts to degrade, like 3P updates) for what becomes an increasingly small number of users. Of course, if the number of users remains significant, support should be maintained.