Greetings. I orderd my free Ubuntu 9.04 Jaunty CD. I have not had a chance to work with it though. My overall impression is Ubuntu is fun to play with - not at all suitable for a development box - I dont trust the software entirely just yet. Another big up for Ubuntu is I love the package...
Whew! I have a similar issue, Windows 7 RTM Laptop - Sharing internet to another Windows 7 PC and a Centos 5.5 Box. It worked yesterday. I am investigating this urgently - My hosting service is being affected. I will update as soon as i have an answer.