I suppose it’s no big deal as you can already re-mix feeds with a number of tools…the additional service is that Ufeed not only present you with a feed, but there is a readable version of your feed hosted on their site.
I don’t see this as anything new at all…just sign up to Feedburner and splice up your feeds…when you click on the Feedburner feed, they too have a pleasant version of your content that you can browse…this is mine.
A good way to present an automated feed is on a blog, using an RSS-to-HTML tool you can syndicate the contents of any feed or combinations of feed into a blog…this ends up being a self populating blog that works on it’s own.
Some people use their del.icio.us account as a link blog, or one of the tags in their account as the content for a link blog. If you re-syndicate this to a blog, people don’t need to go to del.icio.us to read your links they can go to your much more pleasant link blog.
I should walk the walk, and make my own link blog from my del.icio.us account.
Check out this prime example of this simple technique.