lovely idea
but you can shoot to a wifi source alreayd, eye-fi cards can shoot to a laptop, via tethering
you can backup to your android tablet of course, if you Root it and copy the folder required, similar to the above.
great solution, but I think it will be epically good when other reasons are discussed, as the items he suggests can already be achieved...
what about voice activated shoot or settings? advanced processing? or 3G dongle e-mailing without the use of a tablet or other device? so shoot? record, resize and 3G to your editor? yes you could do this with a phone/tablet but not as easily whilst you're shooting. thumbnails uploaded, editor selects and the camera responds by sending the full image mid football match without intervention by the photographer (for example) or a plugged in laptop source.