Interesting gizmo: Measuring only 0.8 x 1.45 in., it boosts a 5.3-volt input to a 5000-volt output. Sandia is looking for a private company to commercialize the device. Link to the full article Here is another more complete article How do you think the powerbook could benefit from such a small power supply? Could/should Apple use this? Could/Should Apple come up with their own version? I wonder how much heat this thing is producing.