Master of analogies Andy Ihnatko draws the parallels between a developer “just” switching from MobileMe to iCloud and renovating a home — as anyone who has done this knows, as soon as you start, it’s a cascade of decisions that result in more work and expense, not to mention a game of “Mother, May I?” with the authorities.follow link
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).
Why the iCloud Transition Is Like a Home Renovation