2012 is the year of the tablet: Android, iPad, and Win8. It doesn't matter what Flash does better than HTML5 or that browser support is still an issue. If you are building today and you want your content to display on mobile, then you can't use Flash.
While I'm sure that the tablet is the future of personal computing, I don't think this is the 'year of the tablet'. If that were true then the next 5 years will be the year of the tablet. The first true evidence of the change is when college students are buying them instead of laptops at a significant rate.
I do believe that any programmer should be using standards but there are still questions when it comes to video.
Obviously there is a belief that mobile technology is going to grow. The numbers today say are that Flash is 96% of users and HTML5 is 74%. If people didn't believe that the mobile segment was growing at an enormous rate, no business stakeholder would even consider HTML5.
