Ok, it was a 'play' of words. I wanted to point out that after you put 90% of the effort to create an application you need to put 90% effort to actually deploy

Ok, it was a 'play' of words. I wanted to point out that after you put 90% of the effort to create an application you need to put 90% effort to actually deploy it in production. Google App Engine helps here. But the fact that AppengineJS (and Rhino/RingoJS that powers it) runs on GAE is a distinctive advantage IMO.