It enables users to develop web applications is JavaScript and host them in the cloud. The only tool required for development is a web browser. And the deployment is instant.
It also features an environment where applications can interact with each other; so they could be really modular and social.
Is this similar to what AppJet originally attempted to do? If so, have you attempted to contact them to see what types of problems they encountered before focusing on EtherPad?
Akshell targets more "heavy" applications than AppJet. E.g., it has a relational database and AppJet had key-value store. I contacted JGate guys. JGate is an AppJet successor http://apps.jgate.de/.
It also features an environment where applications can interact with each other; so they could be really modular and social.