unjester

Interactive shell (known as Mongo Shell) coming in one week. Also will have ssh port forwarding so you can run things locally and connect to remote Mongo.

node.js and others coming. And the architecture is pluggable, so once we enable 3rd-party plug-ins, they will come faster. :)

I work at OpenShift. On pricing: There are two models, the one quoted above where you use your own EC2 account and get 30 free hours, and one where you're running multi-tenant in our EC2 account entirely for free. On the second one (called Express), the intention is to keep these free instances and have people pay for additional capacity. It's a git interaction, languages are Java, Python, PHP, Perl & Ruby, and we're giving away the largest free quota of MongoDB so we can get your feedback.