Rapid prototyping with Google App Engine
I have been extensively using google app engine for most of our mobile project, even our Fafadia Tech’s main website runs on GAE. What appeals to me is the simplicity of it use. You basically write models and controllers use Datastore as models. And simply run appcfg.py update <some_dir> and you’re done. So need to install,configure and deploy. It gives you a nice interface for monitoring your application. And did I mention its free for 1MM pages.
However what missing and they are promising its going to come is SQL support. Right now its their own system with interfaces exposed to external world for use. BTW this time we are doing a little different we will be opensoucing one of our android app. So stay tuned.