Google App Enigne supports Fortan 77 and you can deploy your application by punch cards to posting Google Office.

http://googleappengine.blogspot.com/2009/04/brand-new-language-on-google-app-engine.html

This is an Apirl Fools' joke from Google.
Anyway, I am still hoping Google App supports Java or C#, because I love Java and I know programming in C#.