D-Link is showing off a low cost gadget called the All-In-One Mobile Companion. It plugs into the wall and has two ports: USB and ethernet.
Plug it into the wall and ethernet, and you’ve got a wifi hotspot. Plug mass storage into the USB port, from a USB stick to a big hard drive, and you can access it remotely from a tablet or smartphone with an app. It also works remotely, basically making this an economy NAS.