In this Macworld article, Andy Ihnatko says this about iCloud as opposed to what Google or Amazon does with cloud technology: That seems exactly right. So far we are used to cloud offerings that require us to do something to get our information onto or off of remote servers. Whether it's uploading files to iDisk or Google Docs, we have to initiate something. We have to call room service, and only then does our bed get made up. iCloud is different. With iCloud-aware apps, the data is automatically put where we want them on whatever device we use. We don't have to call room service, room service knows to make up the bed every day when we are not in the room. This is why what Apple is doing is different and revolutionary. We've had cloud technology for some time now and the geeks know how to use it to good effect. But the average person (as usual) can't be bothered to learn it or use it. So Apple is making something that will just work behind the scenes. A person will create a document in Pages on their MacBook, switch to their iPad and there the updated doc will be ready for them. Room service took care of it automatically. When the average person gets this, iCloud will be incredibly popular. Once again Apple is catering to the far larger average-person market, and once again it is the geeks who are complaining while continuing to think in old ways about how cloud technology works.