Is there a way to connect an iPhone to our company OpenVPN server?
I have it working on a jailbroken iPhone 3.x. Detailed instructions can be found at http://chandraonline.net/blog/?p=22.
As of the latest iPhone OS release (3.0) this is not possible. I am unsure if someone could create an 'all in one' client that connects to OpenVPN and then allows you to browse the web from within the same app.
But certainly any app that connected to OpenVPN could not then be put into the background allowing you to use the built in Mobile Safari or Mobile Mail over the VPN.
OpenVPN.net finally released an official client for iOS: