Has anyone tried to use Apple's .Mac service using their own domain name?

They have a weird system set up where you have to add a CNAME record for www.youdomain.com, and youdomain.com points to your old host. You have to maintain your current web host because of email features, etc.

Any thoughts?

I saw that too. I dont think the domain would have to remain pointed to the webhost unless you want to send email from that specific domain. You could have the domain parked at your registrar assuming it has custom dns features.

its the same way gmail works - easy peasy

Users of .Mac can build public or private meeting pages using the groups service. Each group gets its own shared file storage, calendar, e-mail, and message board.

The .Mac service is also getting some extra features later this year with Apple's next operating system release. Subscribers will be able to access remote computers from any Mac.