In Europe the Fuji GFX will start shipping out on February 26 at Calumet Germany. It will ship a couple of days later (March 1) in USA via BHphoto.
And if you want to get to a GFX touch and try session check out those links:
US tour info at Fujirumors
Germany tour info at Fuji DE
Lot of ongoing GFX test reports and discussion on our Fuji GFX facebook group.