I have tried this now and it works great, in principle. I can issue the connect command to one of several MP clients and control it, just as intended. However, I'm having frequent problems actually getting a connection. After a few successful switches, the connect command stops working. It is issued, but no connection event comes back. If I go to the plugin config and try a manual connect it says something like: error, unable to connect to host. A reboot of the VC machine and restart of the MP clients clears it up for a while, but then it fails again. Please let me know what additional info you need to look into this. I'm now using VC 0.946 with the plugin update above, MP 1.2.2 with 0.6.1 of the WiFiRemote plugin.
On a separate note, the voice recognition is very unstable, with VC crashing very frequently. The Windows error screen talks about APPCRASH in spsreng.dll, and the crashes are frequent also when I try Windows speech recognition programs like training, mic setup etc, so this is probably not VC related.