I tried to get IPSec to work but never could. But I didn't spend much time on it, since I wanted OpenVPN to work.
I would think someone with some time could get it to work.
Be a man, root your phone. The WiFi tethering (access point to 7 devices) is woth it alone!
Nothing manly about rooting. For a start, why would I need tethering? I'm quite happy with my 100Meg cable thanks.
Oh and I got it working so no need for follow ups about rooting thanks. Be a man and do it properly perhaps?