Well it looks like that exclusivity for Vodafone is only for the UK market if this screen shot from a T-Mobile Germany internal inventory system is accurate.
As you run down the list of specifications the final bullet item sums it up: 32GB of internal storage, further noting no microSD slot. In addition to that little tidbit, the shot also shows a target launch time frame as the 24th week of the year which is the week starting Sunday, June 9th, meaning that the good Windows Phone fans in Germany do not have much longer to wait.
Does this mean we might see a 32GB version of the Nokia Lumia 925 come stateside to T-Mobile USA? We do not know for certain. All we know is that T-Mobile in the US will be carrying it, and while no release date has yet been announced, it is expected next month.
source: WParea.de via WMPoweruser