BlueSpam searches for all discoverable bluetooth devices and sends a file to them (spams them) if they support OBEX. By default a small text will be send. To customize the message that should be send you need a palm with an SD/MMC card, then you create the directory /PALM/programs/BlueSpam/Send/ and put the file (any type of file will work .jpg is allways fun) you would like to send into this directory.

Download and Info : http://www.mulliner.org/palm/bluespam.php