Good heavens, I suppose a man may eat his own muffins in his own garden. " "But you have just said it was perfectly heartless to eat muffins!" "I said it was perfectly heartless of YOU under the circumstances. That is a very different thing. " "That may be, but the muffins are the same!
As devices multiply and usage changes (many users coming online today may never use a desktop machine), it becomes more and more important to ensure that people can access all of their stuff anywhere.