At long last, Adobe has released Flash Player 10.1 for Mac OS X. There's a huge list of changes with this update; hopefully one will address "...the number one reason Macs crash."
The major changes are aimed at developers, and include GPU hardware acceleration, support for dynamic quality during video streaming, dynamic sound generators, and upload/download functions in web apps. The 7.44MB download requires Safari, Firefox or Opera and Mac OS X 10.4 or later. Linux and Windows versions are also available now.