There are ways around this. I wrote the only book on RSS, and am just working through the second edition: since I wrote the first one, there has been a lot of progress in ways to embed video and suchlike within an RSS feed. Drop me an email if you want some pointers.Mondo, you bring up an excellent point. It is kind of funny (now that I look at it) that my first topic would happen to be on RSS and the significance of the disconnected paradigm and yet I present it in a format (video blog) that requires the viewer to be on-line.
RSS, though, is just the thing for a more productive way of life. Pretty much any repetitive information gathering exercise can be automated into an RSS feed. After reading GTD I started to go through everything I did during the day and coding up feeds for everything I could: I have private ones for my bank account and so on, and you can track FedEx packages in RSS or validate your site with tools I wrote and made public.
Actually, if anyone has any ideas for things that could be better done in RSS (which is basically a NextAction list with a fancy user interface) let me know. I'll code it up for you.