All I've heard of about snapbridge makes me agree, cpm. Nikon have been trying this for long enough that you'd think they'd have brought in someone who could do it right by now. For what is worth, apps exist that let you drive a camera from a USB-connected cellphone, which gives you some mobile flexibility. And there's the Eye-Fi if you want a cheaper way to transfer images. I admit that the software engineers I know who work in networking all hate their jobs, but it feels like Nikon have managed to make something relatively simple very hard work.