John Gruber writes why the iPad’s multitasking UI mental model can be extremely confusing.
I believe the whole app launching & icons sitting on the home screen model should be rethought. If you were to design it from scratch today, I believe you would arrive at a more intuitive and simpler system. Rearranging icons is a chore. Drag and drop feels like balancing an egg on a fork. Most of it is undiscoverable.
The iPad has the chance to be an amazing device but the system software is frustrating.