And it's in Gentoo! (net-www/memcached)
And they're even filing bugs against it:
When I build my next desktop, I think I'm going Gentoo. I played with it once and was impressed how bleeding edge it was. Debian will always be on my servers (and most my desktops, I imagine).
VoicePulse is awesome. They run all on Asterisk, how cool is that? And they replied to an email of mine on a Sunday. Doubly cool. In any case, I'm not dropping Vonage, because they also rock. VoIP is so cool.