Let's put on our thinking hats. Buy a microSD card with a bigger adapter (SD) so it'll fit into the camera. Then you can put it into the phone also. If the pictures were in the right folder, you can browse them on the phone, and send them using Wifi. Some phones will browse to any folder. Sounds like the perfect solution to me. Why is it not popular to use? Because people are using PC's to view the pictures before sending, or something like this:http://www.digitalfoci.com/photo_safe.html
The most popular solution is to buy more than one 32GB card. This should hold enough still images from even a long holiday for a light packer. Our mobile phone solution would only be useful for someone traveling light, who wants to share the photos immediately. They are making tiny PC's today.
Video, on the other hand, needs a useful product to copy the files daily. It's hard to beat a cheap PC with a big drive.