[theBobMcCormick]

Given that Gartner estimated OSX as having only about 10% of the desk/laptop market share in 2011, the idea that Dropbox is going to be put out of business by iCloud is laughably ignorant. Unless Apple decides to make iCloud available to Windows users, but IMHO that seems unlikely.

The competition isn't much better on the MS side. Windows has the bulk of the desktop/laptop users, but it's pretty unlikely for them to offer a file sync client that'll work with the iPhone or Android, and Windows Phone 7 is still looking for an audience.

I do agree that Dropbox could do a lot to make their person-to-person sharing more compelling and easy.

[kevinalexbrown]

You can use iCloud on Windows... Check the website.

[antihero]

Android? Linux? Why would I want to use a cloud service that I can't sync most of my devices on?