Well maybe not dead. But mortally wounded. Today Adobe announced the are no longer going to develop a Flash Player for mobile devices. Steve Shankland at CNET has the story.
Flash: Crippled but alive...for now
Although Steve Jobs is no longer with us, his will is done. He stated early on that Flash wasn't a good fit for mobile devices and Apple would focus on HTML5. As of today, Adobe agrees with him. But don't make too big a deal out of this, Adobe will still support mobile apps using their Air platform. In addition, the story points out that most of us are still using PCs rather than iPhones or iPads.
Finally, in the end, Adobe is a tools vendor. Whether their tools target Flash or HTML5, they make money either way.