Google hosting wikimedia projects?

[Bewenched]

While looking a website's code earier I noticed a type of meta tag I hadn't seen before

<META NAME="channel" CONTENT="#*$!XX"> X's replacing a one word description.

So I searched to see what it was and found this article.

[meta.wikimedia.org...]

[code.google.com...]

"LiquidThreads is a proposed discussion system for MediaWiki 2.0. It is currently an underway project for Google's Summer of Code 2006"

What is this all about?