In Firefox the image specified by the poster attribute of the VIDEO
tag remains on screen until the play button is pressed. However in the Webkit browsers (Safari a
It seems that WebKit strips the attribute as soon as the video is fethced, because iOS 3.x for Iphone and Ipad has a serious bug where it is not possible to play the video at all when there is a poster attribute specified. This was fixed in iOS 4, but the workaround still stays, even in Safari 5...There are a lot of users who didn't upgrade to iOS 4 yet, so no luck with the poster...
I'm going to try and position the image absolutely over the video using Javascript, and removing it when the video is played - that seems like the best solution...