Nice. Just an FYI. I was on build 130. I upgraded one VM to the latest build. I then booted up a laptop with 130 and made sure it was all set to get updates from WU plus machines on local Internet. I carefully monitored machine with wireshark and I'm sorry to say that the second Computer got its update files for the latest build from Microsoft servers and never touched the local machine at all. The p2p feature did not work for me. Both machines were on the same subnet and both were ping-able from each other. Bit disappointing :-(