Thanks for reaching out.
Virtual instances of SteelConnect will be supported on SteelHead CX 570, 770 and 3070, to start. These are currently being targeted for Q4 2016.
SteelConnect can also be leveraged as its own appliances in the form of gateways, switches and access points. More information can be found on www.riverbed.com/steelconnect. Feel free to test the UI there too!
Please let us know if you have additional questions.