The iPad introduced support for document sync across your computer and apps on the device using iTunes as a platform to communicate between databases (Pages, Numbers, GoodReader etc.) and the files on your computer. The process is slow and very un-Apple in my opinion, considering that you have to plug in the device, fire up iTunes (which is slow), wait for an initial sync, move to the Apps tab, choose the app, drag & drop and then sync again.
Also, there’s no sync between documents: iTunes doesn’t automatically replace files on your Mac with the you edited on your iPad, it just copies them. You can’t carry along the same document and hope for some kind of sync, though that would be great and it’s certainly coming to MobileMe or iWork.com sometimes in the future.
So, we’re stuck with drag & drop in iTunes. Fortunately for us, there are some 3rd party applications that are coming out and promise to change the way you move documents between your desktop and tablet (and iPhone, too) and today I’m taking a look at one of them, PadSync.