From the "someone was having fun" files:

The first Google Chrome Easter Egg has been discovered. Type in about:internets into the omnibox and you'll get your own view of the tubes themselves...

I still like Firefox 3's Easter Egg too (type about:robots).

On a more serious not, there are a bunch of about: commands in Chrome that (like Firefox) provide additional details for technical users.

Among them is the  about:histograms, stats, crash, memory and version options. Try 'em out for yourself no doubt there are a few other 'goodies' under the hood that have yet to be discovered.