Earlier this week, Adobe announced a 64-bit beta preview version of Flash Player codenamed "Square" and available for Windows, Linux, and (gasp) Mac. With improved support for Internet Explorer 9 Beta, this latest version of Flash should ensure you’re able to see more than just Flash ads in 64-bit glory.

In addition to offering some performance improvements (Square uses a significantly smaller amount of my CPU while watching YouTube videos), the beta version of Flash has also been streamlined for OS X:

Flash Player 10.1 introduces significant optimizations specifically for Mac OS. As part of our engineering work for 64-bit, Flash Player 10.1 has been rewritten entirely to use the modern Mac OS X Cocoa framework. It also takes advantage of Mac OS technologies such as Core Audio, Core Graphics, Core Foundation, and Core Animation, leveraging native technologies while improving performance.

More: http://www.pcworld.com/article/205575/