At first glance, Junospheres looks more like a virtual testing ground, and not a deployable product that can be launched and run on a real operational network. Am I wrong?
Olive is an interesting option. I don't know much about it, I always thought it was unlicensed software, and that may not fly with my network if it is used on an operational network. I may try it for kicks anyway just to see if I can "load" it on a virtual server in my Amazon cloud account, just to see if it works.
So if I'm right about Junosphere, then Juniper does not have a VM router product yet, do they?