OS X Yosemite, Why The Beta Might Not Be The Best Idea For You
If you follow Apple, even in the remotest sense, you might just be chomping at the bit to get your hands on the Beta of OS X Yosemite. Before you take the plunge think hard and fast as not everything will be smooth. Brush up on the meaning of what a Beta is and the potential pitfalls.
As you can see at the bottom the Dock in Yosemite is missing some icons, right until you click on them and they'll come right back.
OS X Yosemite really hits the convergence point for MAC OS X and iOS 8 so you'll get the best from Yosemite when you get a hold of iOS 8. To be fair apple does warn you about documents and synching.
Changes To iCloud Documents And data in "Mail" oaths mac are only available on devices using OS X 10.10 and iOS 8