Panasonic US marketing department is working hard this summer! They are now (again) offering a new Gold Box deal. You can get the GF3 with X pancake zoom for much less than $600 at Amazon (Click here).
P.S. The 12-35mm X is back in Stock at Amazon (eleven lenses left in Stock at the moment of posting this). Almost all Black E-M5 kit versions are also in Stock (Click here).