I'm out and about alot, when I try to check your site or watch a video. 9/10 times the thing will crash. The videos will never play due to lack of 'flash support'.
Half the time the comments just don't load.
And it jumps around like a lunatic when you're trying to read something.
Oh, and lastly, if your 'Please use our survey' banner pops up it sits off screen and is impossible to do anything with.
Ipad and W7 phone.