Does anyone here use a PDA to record location data for possible photographs? As I walk around seeing opportunities I make notes in my head but I've run out of room, or something... What I'd like to be able to do is to push a single button to record a GPS coordinate, date and time alongside a small digital photo taken with the PDA. The idea is to put it into a database once a week on the PC and record other notes at home while they're still fresh in my mind. Then I would be able to make some predictions about what time to visit again to get the light I need or to avoid a high tide or whatever. Over years I imagine this could grow into a valuable resource. Please let me know if you use such a PDA and if you already know of an application that would fit my needs. Thanks, Matt. P.S. I am not going to pay $1300 for professional GIS software so I'm thinking of open source applications or very reasonably priced ones.