VPN is a basic thing that is required in enterprise products and Cisco's VPN is most famous in enterprise world.
Everyone saying 8.1 RT is enterprise ready, is it? If its not already supported, they must be doing something about it. This thread really needs an educated answer about what are the strengths and limitations of VPN on RT, from TechNet guys. I guess we also need to ask this question in TechNet Windows 8.1 networking forum.