Nikon Transfer 1.5.1 adds D3s support, support for 64-bit versions of Vista (though the app is still only 32-bit), and OS X 10.5.8 support (last version of Leopard, not Snow Leopard). Nikon View 1.5.0 adds the same things but adds a GPS function that allows you to move log data to image tags, and support for Epson E-Photo.