[tomsem]

..and still no support for PDF links (from TOC, indexes, to endnotes etc.).

It remains to be seen what the PDF annotation consists of, whether they are written back to the PDF, and whether existing PDF annotations can be edited. I doubt this is what they are doing, but would be very happy to be wrong about it.

At the least I expect there will be a sidecar file and things written to clippings file (synced to your amazon account) but ability to create/edit PDF annotations that can be read on other PDF readers would be best. Then you could move back and forth between computer and Kindle without having to merge different annotation schemes.

And they need to back port the enhancements to DX at least.

BTW, I can see PDF markup on my K2 (like overlaid graphics and text), but can't see what is in 'sticky note' annotations for example. So there is some gap to bridge in terms of working with PDF annotations.