Something that came across ##openvpn on freenode today:

10:49 < oc80z> +-(root at pre)->
10:49 < oc80z> +-(/var/home/box)--> # ipkg-opt list | grep vpn
10:49 < oc80z> openvpn - 2.1_rc15-1 - SSL based VPN server with  
Windows client support
10:49 < oc80z> openvpn on the Palm Pre
10:50 < krzee> wow that was quick
10:50 < oc80z> :D
10:50 < oc80z> i did an scp on the WAN, pushed 10mbit+
10:51 < oc80z> Great device.

I don't know that Blackberry or iPhone have an OpenVPN client (please  
prove me wrong, would love to find an OpenVPN client for my BB).
---
Eric Crist