Flash performance varies significantly by platform. It is miserable on all mobile devices and banned on the tablet market leader's devices. Given the fact that

Flash performance varies significantly by platform. It is miserable on all mobile devices and banned on the tablet market leader's devices. Given the fact that mobile is gropwing so fast and is pretty clearly a huge part of computing in the future, it's ridiculous to suggest Flash seriously out performs HTML5 in this most important area.