Unlogo :: If someone unlogo'd your campaign - would users know it was you?

[vimeo http://www.vimeo.com/14566198 w=500&h=283]

I love this video mainly because it's a question I love to ask at Google:
If we took the logo off this - would anyone know it was us?

It's always good to swap in your competitors logo (or just take yours off) and see the reaction! If it freaks people out then that's a good thing - ads should be more than just a happy blend of music, cliches and a logo.