This is a silly movement. Flash isn't going anywhere, and there's no reason for it to. "HTML5" isn't finalized, well supported, and is (in my experience) almost always slower than the equivalent Flash code. Flash is supposedly bringing fullscreen support and right-click functionality too, one of my biggest gripes with the technology.

I support open source, I want HTML5 to replace Flash, but we're not nearly there yet. Wait for the technology to mature.