We have no concrete plans yet, although we do see HTML 5 as the way to go. The basic problem is that there are more IE6 users of our site as there are iPad/iPhone users (i.e. not many), and re-writing all of our Flash activities would take time and be expensive. We are working on a strategy, but we can't officially support iPhones at the moment. I realise, of course, that we would have more iPad clients if we supported that platform!
Your best bet at the moment would be to use Puffin, which some of us here at SAM have tried installing. It seems to work ok, but is not officially supported.