As far as I have seen in your documentation, the Flash viewer doesn't support annotations (no support for viewing nor for editing them).
Also, I have noticed that the XOD files contain an XFDF file in them with annotations. But, as far as I saw, this isn't used either (I think by any of the viewers).
Questions:
1) Am I wrong in any of the above? Is there ANY way to display annotations in Flash?
2) Could you possibly provide a time estimate for when will annotations be supported in the Flash version? (Is it gonna be soon or many years from now? Is it in your current plans?)
Thanks. :)