A centralized Notification Center was a great addition to OS X. The problem? Based on their original design, they caused more problems than they solve. In OS X Mavericks, Apple's fixing the notifications so that you can deal with the notification right from a dialog rather than needing to fire up a whole application to use them.
In other words, when you get an email or an iMessage, you'll be able to respond from a pop-up dialog right there in the notification. You'll also be getting notifications directly on your desktop from any app on your iPhone that has push notifications turned on. That means no more switching between your phone and your computer when you're at your desk anymore. Or we hope—if Apple actually got it right this time.
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