All the applications I've built in the past are automatically certified now that there is a new Certification Program called "The Works on my machine" Certification Program. The guys are Coding Horror has jazzed up the logo a little bit and clarified the stringent requirements. I can now wear this illustrious logo on a T-shirt (as long as I buy it from them).
I wonder if we'll ever have a "works on my mobile" version.
Thanks Steve for the link.