Akihabara News has some nifty
screenshots of what appears to be a vending machine for Japanese PDA software and e-books. According to the report, you indicate via touchscreen which product you want, then choose the right memory card format (SD, CF, or MS), and hit "Buy" to receive the software on your memory card (not sure whether you have to supply the card or whether it is included with the purchase).
Because really, what could be more wonderful than to buy your magazines and books from an electronic vending machine in future?