Both Apple, Steve Jobs specifically, and now Microsoft, not Steve Ballmer specifically it was Dan Hachamovich general manager of IE, have said that Flash isn’t cutting it on the mobile phone or regular PCs, for that matter. HTML5 with the H.264 codec is the future. Its going to be built into IE9 natively, actually.
Its about time there’s some standards here. Flash, Silverlight, Shockwave, QuickTime, etc. Hopefully in the future we’ll get a reprieve from loading all of this other software that could have security issues into our boxes.