A vending machine that beams software to Palm organizers is a Purple Cow. It never runs out of inventory, it appeals to people with credit cards and with time and money to spare, and the profit margins are pretty good. 

EZ ZAP sells both commercial software and advertiser-supported freeware. You can find one at a local airport if you’re lucky. The freeware is a great way to get someone to try the machine in the first place, don’t you think?

Link: PalmInfocenter.com: Tests Begin for Handheld Software Vending Machine.