Now that you've set that up, nobody can connect.
No, they can connect. You don't need (can't have) a VPN tunnel to connect. Once connected (open access point), however, the router won't route anything past itself until the client creates the VPN tunnel.
I'll be very surprised if there isn't a Wiki by morning, and I'll be there's half a dozen or more Waves about it by now.
There's already a wiki: http://en.wikipedia.org/wiki/Go_(programming_language) Provides hardly any info, but stil...
"The sixties were good to you, weren't they?" -- George Carlin