I want it to happen automatically and on a per access point basis, so on home WiFi it's not required, only when I'm connected to the tethering hotpot.

I don't want to have to start stuff manually, I absolutely cannot have any traffic leak direct over the WiFi before the VPN is established.

There are no VPN settings under the WiFi AP settings as far as I can see, they're generic and you have to manually start the VPN.

Adrian

Edit: And if anybody knows how to do this, it'll be you Mark!

Oh, and my iPhone 4S has been sold, just waiting for tuesday now to get my hands on the Nexus 4!