Mashups - So Now, So Future, So Yesterday?

I've been blown away by web software mashups. Just getting my feet wet at this point with Yahoo Pipes, Microsoft PopFly, others. I'm curious what folks will be coming up with. It seems that FeedBurner's one mashup example. The possibilities seem to be endless, creating remixed content, all dynamic.

wikipidia's got a killer page on them.

A whole new dimension to our fair cyberworld is taking further hold. Can't wait to dig in more here. The quest continues...