Today Vodafone has updated their "Coming Soon" page for the Nexus One to "Coming Soon/April". From looks of it, it could be a mistake. Why put up an April release in the last days of April? It has been almost four months now that Vodafone customers have been waiting for the Nexus so if this is true you can possibly put in your order today.
I checked the Google phone page and it still says coming this spring. This phone will likely get the same subsidized treatment as the T-Mobile version. So whenever it is available get ready to get locked in for a specified amount of time, that isn’t a bad thing trust me, it’s a great handset and it will guaranteed get the rumored 2.2 before every other device.