iPhone sucks at playing YouTube videos. I'm logged on my YT account on my iPhone and I tried to view the vids I uploaded and some don't work, some new some old. I was trying to figure out a way to get my youtube vids to play on this blog for iPhone users. I tried embedding youtube and vimeo vids using html5 and also put up direct links. No luck. It's hit or miss and there is no rhyme or reason as to why...for shame.
my crappy old LG phone has better YouTube playing capabilities than the iPhone.
EDIT: got it to work on iPhone but you just got to click the link i supplied.