Number of videos uploaded to the sharing site from mobile phones has jumped 400 per cent since FridayThe impact of the newly-released iPhone 3GS on video is revealed by a post on the YouTube blog by product manager Dwipal Desai and community manager Mia Quagliarello. The duo claim that the number of videos uploaded to the sharing site from mobile phones has jumped 400 per cent since the iPhone 3GS’s release last Friday.