I'm really just thinking out loud here because I'm sure someone has thought of this before. I can plug a USB drive into my Wii U and save digital games and data to it. Obviously this doesn't work on my computer. I would assume that the drive is encrypted based on a "password" that is unique to your console, a "password" we can't get at this point. Theoretically, couldn't an application be created in the future that uses this "password" (once/if we get it) to decrypt your USB drive and install games onto it then re-encrypt the drive to be used with your Wii U?