I didn’t notice it before, but Adobe has released a new version of their 64-Bit Flash plugin for Linux. I quote: “The 64-bit Flash Player 10 alpha refresh for Linux was released on July 30, 2009.”
Grab it on the Adobe Labs page and follow my instructions on this blogpost to install it. these instructions are valid for Fedora 10, 11 and basically any 64-Bit Linux OS.