J, i've tried a couple of different ones from ebay....since the 5 and the 6 have the same plug i tried them in both phones and none of them have worked ( i did get full refunds)....all auctions advertised that it worked for the phones, but it didn't...i was told to try different SD cards, high speed, non HC cards but haven't tried them yet....the one i had for my iphone 4 worked on the ipad but not the phone. I did not watch the video you posted yet, but it would be darn nice if something for the iphone worked so i didn't have to buy a trail pad...
carrying an old digital camera is a great idea and "i wish i would have thought of that" a few years back!