I don't know how long the demo script will be up, but it makes for a wonderful application atop any gada.be OPML URL – check out the OPML2RSS and Gada.be Demo page. I discovered it from our referrer logs, which will be open to everybody by RSS soon enough (perhaps as soon as tomorrow). It was part of the third part of a three part series: OPML2RSS and Keyword2RSS via Gada.be. It's fun to see people play with gada.be this way.