According to statistics from Ooyala, as reported by AllThingsD, Apple's iPhone took a 67 percent share of the total time mobile users spent watching videos, more than double the 33 percent share of handsets running Google's Android.
To play devils advocate I browse in desktop mode on my Android phone I believe it reports the user agent as a PC basicly to stop myself getting the cut down mobile sites, it also has iPad, iPhone and the default Android user agents. Also I'm more likely to watch local videos on it just because I don't have to convert anything.