We heard last month when we got our first glimpse of a white Nexus S that it might be headed to Vodafone, and that's now finally been confirmed by Vodafone itself. Details are still pretty light beyond that, but Vodafone says that the phone is "coming soon," and that it will be the only carrier to offer the phone in white -- in the UK, at least.
[Thanks to everyone who sent this in]White Nexus S confirmed