And yet we still don't get an answer from Microsoft. Why are you not busting down Cisco's door to work with them on this? Do not take your enterprise customers for granted. Android and Apple are moving in very fast and furious.
It appears that the fault is not Cisco's at this point. In one of the other threads on RT and VPN support (I don't have the link handy) someone posted a link to Cisco's VPN client suport page and Cisco straight out said Windows RT isn't supported since they (Cisco) don't have access to the APIs required to make a client. The WinRT api isn't enough apparently, and unlike regular WIndows 8, Microsoft still refuses to allow third parties to use win32 and .NET on Windows RT, even though the APIs work just fine (they use the APIs themselves obviously). Basically it's a political problem before it's a technical one, trying to push WinRT api and modern ui on Windows RT.