We're in a transitional period. The vast majority of people who have iPads do have a PC of some kind also. For now it's the most practical way of doing backups, updates, and syncing large amounts of content. I do think Apple will move in the direction of not requiring a PC for these things but it's non-trival. How do you sync 16-64GB of data over 3G? Do you push 300MB+ updates to someone with a 150MB/month data cap?…
I'll have to disagree with most of what you say here. I would attribute Apple's decision not to divorce the iPad from a PC to their desire to assert some presence onto the PC ecosystem. They don't want to be be JUST your tablet OS, they want to be on the desktop, by forcing installation of iTunes onto Windows machines as well. This way, both products reenforce each other, and they can get increased market share on de…
Gruber and others have claimed that Apple is unusual in being willing to develop new products at the expense of old products. I think this might be true.
That's that only logical explanation for maintaining this extra complexity by a company that is otherwise brilliant at simplifying the user experience.
In fact, Apple have a track record of poor UX with complex network services. I'll guess that they have always intended for the Ipad to be a stand-alone device, but haven't ironed out the problems with their cloud storage.