Mac OS X 10.8.1 is fo' reelz.

To those who wait for the .1 fix of any .0 product... Apple has updated Mountain Lion.

The 10.8.1 update includes general operating system fixes that improve the stability and compatibility of your Mac, including fixes that:

• Resolve an issue that may cause Migration Assistant to unexpectedly quit 
• Improve compatibility when connecting to an Exchange server in Mail
• Address an issue playing audio through a Thunderbolt display
• Resolve an issue that prevents iMessages from being sent
• Resolve an issue when connecting to SMB servers with long names
• Address an issue that may cause the system to become unresponsive when using Pinyin input

I also hear it clears acne and may make you sterile, but these claims are unsubstantiated at this time.

Check the "software update" under your "Apple menu."