I'm so lazy

I'm so lazy that I don't even want to check the calendar on the PLUG
site for upcoming events. And yet I hate to miss any. Furthermore with
nice public standards for calendaring, all PLUG needs to do is load the
calendar on a WebDAV server and I can simply subscribe. Then I can stay
up to date with *no* effort on my part and very little effort on PLUG's
part.

So how come we can't subscribe to the PLUG calendar?