[apostrophedave]

a few years ago i was looking for something like this for my car stereo. instead of having to take the sd card out of the car and change the music every few days i could just use something like this to sync across new music. dunno if it works like that though.

there are cards called Eye-fi that have done wireless for a few years now but they only sync across photos from a dslr/camera to your computer or mobile phone