True that also others can register. Their mailing did mention &quot;As newsletter subscribers, we want to give you exclusive early access and get your feedback&quot; below a &quot;HyperDev Private Beta&quot; heading.<p>Personally, I don&#x27;t think it will be Open Source, at least not soon, but who knows. I haven&#x27;t seen an indication on the business model or long-term strategy - could be paid hosting for running applications with more resources (just like Heroku, OpenShift, Google App Engine and other PaaS providers), or paid add-ons for additional features (monitoring, analytics, logging, persistency, high-availability). Or perhaps it is an entry for their Kiln service, version control and source code hosting, but I&#x27;m just guessing here. Fog Creek is using different types of revenue models for their services.