UPDATED the original post to say this:
Closed beta testing of Hybrid VPN is now underway! Everyone who posted in this thread that owns an R1 will soon receive a private message with the upgrade firmware.
If you own an R1 and would like to help us test Hybrid VPN, please post in this thread.
XR500 & XR700 users - please also post in this thread if you are keen to test Hybrid VPN. NETGEAR may want to take a similar approach as we are doing with the R1 so building a list of willing testers could be very helpful.