So far, I’ve owned every Palm Pilot ever produced. I lost my original Palm Pilot 1000 on an airplane (not likely anyone will return one if you lose it).. I bought the Palm Pilot Personal (differs from Professional only by the amount of memory) for the new backlit screen. I ordered an upgrade to Palm III status for it, but cancelled the order when it took too long. I purchased the new Palm III. Now I’m lusting for a Palm IV (announced last week for a late November shipment schedule).