Any Palm OS device can beam to any other Palm OS device. As long as beam receive is enabled. Also you can pick which part of and address book is beamed. I have all my cacher contacts in a subgroup called... you guessed it "Cachers". Of course this will be no help to the Pocket PC crowd. Maybe someone can work on one for them. As far as getting it around it should be straight forward. As people get together be it at an event or just caching together we can start passing the lists along. As the list grows we just keep passing them back and forth. At least this is one way to do it. I'm sure there are plenty of alternitives to this. As Dave said it's a start.