It would be great if Microsoft would open up a bit about what their plans are for this service, to the extent that it could be something I can rely on in a commercial context.
Other than that the plan is to keep this (or something similar) running as long as there is sufficient interest and so far there seems to be quite a bit!
Note that it does run on docker which means ultimately it's not fully "secure", but we hope to switch to hyperv-linux when it's available.
[smortaz at msft]