In terms of open standards, is there any reason to switch from Flash to HTML5 video if that video is going to be in H.264?<p>I understand that there are possibly technical reasons for Chrome\Safari choosing H.264 as the default codec instead of Theora but it strikes me as somewhat disingenuous for people to harp on about the need to move away from a proprietary technology like Flash, if the alternative is an open standard built on top of a proprietary codec.