Without much notice, the Undo command in the Finder's Edit menu now works allowing you to undo most operations that the Finder performs.

Accidently move a bunch of files to the wrong folder? No problem - just Undo it! [Ken Bereskin's Radio Weblog]  8:07:11 PM    

In any Cocoa app, Command-3 will copy the text style (font, style, size) and Command-4 will apply that style.

And surprise, surprise, Command-Shift-3 will take a screen shot just like the Mac has done for years and years. [Ken Bereskin's Radio Weblog]  8:06:45 PM    

Want to force quit an unresponsive/crashed application? Of course, you can use the Force Quit... command in the Apple menu, but it's somehow much more satisfying to click-hold on the apps icon in the Dock with the Option key pressed. Note that Quit turns to Force Quit and gives you the control you've always deserved. (be patient - if the process has crashed the Dock might take a couple of seconds to put up its menu) [Ken Bereskin's Radio Weblog]  8:06:08 PM    

We put together a really well received "feature presentation" at Macworld delivered by Phil Schiller and Avie Tevanian. Deeper than our typical presentations (discusses the kernel, security, AppleScript, Cocoa, Music/Audio and innovative apps from smaller developers), this 60 minute stream will give you insight in to some of the things that we feel make Mac OS X so cool. Check it out.... [Ken Bereskin's Radio Weblog] [We are the 801]  8:01:39 PM