It could also be a really great external hard drive, being able to put files on it wirelessly before a trip then grabbing it and heading out.
My question is, is there any possibility to run it off DC power, like from a USB adapter? So, could actually be used as an external hard drive? That would make it a great dual-use product.
Lastly, I wonder if you could install CrashPlan on it and use it as a CrashPlan backup respository? With a good 500GB drive in there, you could backup all your important data from all your computers onto the device, and in case of an emergency, just grab that one little box and run. Having an always-on, power-efficient backup would be awesome. Heck, you could even put one off-site at a family or friends house and backup to it over the internet to have your own off-site backup. Would that work?