When the Nexus One becomes available in the UK (on a carrier's contract), I will be seriously considering switching from O2 to Vodafone (even though I am an O2 platinum customer, but I don't think they will be offering the Nexus One), and to do so I will be requesting my PAC (Port Authorisation Code) from O2 so I can take my number to Vodafone.

However I was just wondering if the Google page will allow me to input my PAC code when I select Vodafone on the Google page?

Did the US T-Mobile page give you this option?