Summary

OpenBSD and OpenSSH gives us wireless networking with:

Strong Encryption
Strong Authentication
Firewall Protection on the Access Points
Intrusion Detection and Prevention on the Access Points

Fault Tolerant Stateful Firewalls
Fault Tolerant Stateful VPN Support
Support for roaming wireless clients keeping state

Mobility without having to compromise on security
A highly automated and very user friendly solution
An Open Source solution that interoperates with Windows
All for free and with
no dependence on commercial hardware or software