Sixty-one artists are performing at the iTunes Music Festival in London through the rest of July, and Apple is streaming those performances live all month. You can watch the performances either in the iTunes Store via iTunes on your computer, or via the free iTunes Festival London 2011 app, which is designed for iPhone, iPod touch, and iPad. If you watch it on an iOS device, you can use AirPlay to stream it to an Apple TV 2 to see it on the big screen. follow link
Set a Default Finder Column Width
When in column view in the Finder, if you want to set the width of all the columns to something different - and have it stick! - Option-drag one of the column handles at the bottom of the window.
iTunes Music Festival Streaming Live This Month
Check out the Take Control ebooks that expand on the topic in this article: