I reckon you own an iPhone darren. lol. Its true, many people do film in vertical mode on any phone, although the iPhone seems to be narrower than most, and its difficult viewing.
Some of the Galaxy phones are getting the size of iPads these days. I saw someone taking photos with an iPad at wheels day. Never seen that before, looked like he was holding up an A4 folder for some reason, until I realised what it was. doh!. He probably has a photo of me with a confused expression.