This looks like a neat service. Browsing through it it was hard to get a sense, what exactly is the use case other than a digital playground. Is this meant to be used for something production-level or just fun a tool to play/explore/experiment with?
Larger applications require more "benefits", just to name a few: more disk space, a dedicated database, more cpu/ram, a less aggressive cleanup when not used (we put your app to sleep if it has not been used for 5/10 minutes).
Of course additional features are needed. We provide what you see now for free, and we will charge for some of the features that are coming. We expect to cover pretty much any requirement that a developer can have when developing a web application.
This is a big bet, but... well, if it wasn't, it weren't worth to play :)