Same too! Surface provided the nice Remote Desktop app but without the Cisco VPN I can't connect to my office or secure remote connection.
Yeah, it's really important to get a Cisco VPN client on RT. I need it to access my uni network VPN, for secure connection and access to certain uni resources such as virtual histology slides/medical journal access.
Just adding my two cents to keep this thread alive so that if someone who knows the right avenues to pursue sees it, they can pressure Cisco/Microsoft.