Does the headline sound catchy enough? Gooood. :-)
Now that I have your attention: Check out the recent FLOSS podcast #12. It's a 1-hour podcast with Rasmus Lerdorf, which is both entertaining and informative.
And he mentions he's using Serendipity - in the last quarter of the podcast. He doesn't actually mention much about our software, but of course highlighting all our strengths would've taken up another hour of the podcast.... ;-)
Anyways - we feel quite humbled to be mentioned by the 'Creator of PHP'. Keep on blogging and have fun!