Does anyone know if the entire iPad backed up each time, or only the changes?While on vacation I loaded 1300 pictures on my iPad, along with with the videos and apps already on the device. All in all I have over 40GB on my iPad.
I did a sync, which starts with a backup - this took 8 hours (my PC is a bit older and not all that fast). The actual sync only took only a few minutes.
Now I'm dreading the next time I need to sync.