Nah, wouldn't work. I leave my keys in my trouser-pockets - otherwise I would close my door, try to lock the door and realize I forgot my keys inside.
So either the PDA wouldn't get loaded (I don't have a PDA but use a Smartphone - same problem) or I would stay outside the door - and the phone inside.
Better to just have an empty pda/smartphone, especially now that winter is coming
