Hrm. I was going to respond and say that I didn't think it registered on enough of the metrics I use, but I went and checked and it does get hits on Amazon, Freshmeat, and even a few job postings on Craigslist. I guess I should consider it.
By the way, while we're on the subject, what do people think of adding ColdFusion? It's sort of a weird hybrid... yeah it's a language, but it appears to me to be even more web specific than PHP. Does it even have a standalone interpreter of some kind? I really don't know that much about it.