Okay, so basically what we'll be doing is making it so your generic flashdrive or mp3 player (Basically anything that uses flash memory...) can be safe from a predator finding it and going through what you store on it :)
Step 1Get some software -.-
iImage Information

Okay, to complete this first step, your gonna have to go and downlaod something :) (sorry :| ) and this something isn't just anything! ITS WINRAR!!!!! you can get this from www.rarlabs.com then go to the downlaods section and get it. Now, since you completed that, go ahead and plug in your usb flash drive.
www.7zip.org Free and open source :)
Bit late with the reply though, lol
I want one.
I have set up a drive like this for a friend who was in the process of getting divorced and it gave considerable peace of mind knowing that his notes and photos for his lawyer were safe even if his ex wife had the drive in her possession and he would know immediately when she plugged it in and where.
The only thing I would like on top of all that would be to have some way of auto erasing the files if an incorrect password was entered 3 times in a row like the IronKey system.