Hi Chris,
I have just joined Blackmagic Design (4 weeks ago) and I will be looking after the Videohub range. I agree with the need for salvos. I have it on my list and with all new development work we need to set priorities. I will be pushing for this but cannot provide a time frame. I can provide the Ethernet protocol which allows for multiple switches via a telnet session if this will help.
Let me know if there are other features you would like implemented.