I think it would be really neat if you can have software that will "spider" the web site and every time it finds text over say 5 lines(user can specify), the software will turn it into part of a xml file for RSS that can be uploaded and they can add a RSS feed on to their site. That way anyone who is doing changes to their site a lot can have a way of providing the updates to repeat web visitors.

This isnt to replace flash RSS, but to actually add RSS from site content itself.

As far as I know(and I have looked intensely), no desktop software currently exist that can do this. There are web sites that provide this service for a fee/ads/branding.