iTunes does the podcasting thing very well, for MP3s and videos. But what about PDFs? Wouldn't it be great to subscribe to a newsfeed and have the whole article, images and all, delivered to your desktop, with a tidy iTunes-like front-end for organising all those disparate documents?
A PDF reader with a built-in RSS subscription plus some way of creating PDF playlists!
The problem with PDFs is that they are not an open standard (witness the latest feud between Adobe and Microsoft over Microsoft's inclusion of PDF printing in Office). But as I was using Inkscape yesterday, I noticed that you can embed an image.
How about using SVG instead of PDF to distribute bundled content in one file? Is the technology out there to "print" multiple page documents with embedded images to files?