There's a cloud solution as well. Do we need to discuss (again) how iTunes and the Apple ecosystem works?
And how do you feel Windows 8 RT is any better? I agree the RT stands for Restricted Tablet. I'm not buying it.
It's very frustrating using iTunes when you want for instance to import a pdf-file from your computor to iBooks on an iPad. You have always to use the same computer to syncronize with. This doesn't make sense! Why can't Apple provide a solution similar to Microsoft's where it is very easy to move documents between different media.