I'm no expert, but isn't it a framework for both iOS and Mac Apps to use? Out of the box it does very little, except for a few Apple functions that are already taking advantage of it (Safari's "Reading List" for example). But if someone wants to create a PDF editing tool, you just use the iCloud API to store your PDFs. Then the Mac version of the PDF editing tool can access the same file as your iPhone version. Or your iPad can do the same. It's a storage device that apps have access to. It is not a storage device that you will browse for files in. Also, each app will only have access to it's own data.

Just an FYI -- Firefox doesn't support MP3 natively in the audio tag either. Only OGG is supported.

Not only is the brown color an odd choice, but I love the picture of the happy couple standing in the water.

That shot was taken at the base of the Brooklyn Bridge (I believe) in NYC. So the happy couple is playing in the East River -- not one of the cleanest waterways in the world. You can see the nice murky water at their feet :)

Oh and also, as someone else pointed out, those pics and text seem awfully hi-res for a QVGA display