Just wanted to put my two cents in since I got this working today. I initially tried the Preware GUI installer, but for whatever reason, it does not work and doesn't provide any errors to easily track down why. What I ended up doing, was manually installing the packages. You can read the full right up on my blog - http://www.ticktockcomputers.com/blo...ouchpad-users/
but the quick of it is, open up a terminal, whatever you are using. (For obvious reasons it should go without saying, you need to root the device first)
Enter the following to install all the dependicies:
Once done, you need to have a valid conf file for openvpn. Create this on your desktop or server first, test it, make sure it works. Then you can just copy it over to /opt/etc/openvpn or wget it from your site/server, etc
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/lzo_2.03-1_arm.ipk
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/ncurses_5.7-1_arm.ipk
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/net-tools_1.60-6_arm.ipk
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/psmisc_22.15-1_arm.ipk
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/openssl_0.9.8p-1_arm.ipk
ipkg-opt install http://ipkg.nslu2-linux.org/feeds/optware/cs08q1armel/cross/stable/openvpn_2.2.0-1_arm.ipk
Once your conf file is there, just type "openvpn yourconf.conf" and hit enter (where yourconf.conf is your conf file). If you did it correctly, openvpn will start and show you it is connecting to the VPN. If your browser was previously open, close and reopen it and then goto ipchicken to see that your IP has changed to that of your VPN server/service. Reboot and everything goes back to normal. Rerun "openvpn yourconf.conf" to start any time you need it.
Ideally I would like for a way to have an icon on the home screen somehow that runs the shell commands for me, so I can turn it on and off at will, but I haven't figured out to put custom icons/commands on the home screen yet. If anyone knows how to do that, please post links here or contact me via my site. Thanks.