Been working on multilingual for a few clients, and recently did a quick survey of public MOSS07 sites that are using Variations for multilingual, including:

Swiss International Airlines

Migros

Office of High Commissioner for Human Rights

World Vision Canada

cegos

Shareview

Desjardins

StatoilHydro

Some of these sites have nav so you can switch between the languages, others you’ll have to change the language setting in your  browser.

A few of the other interesting public sites built on MOSS:

Invensys

Hawaiian Air

Energizer

Western Australia

Paul Mitchell

Viacom

Swiss Army