Sony sees the potential of mobile devices and, with this new invention, will help make people's lives a bit easier.
Most of you, who have transfered information, use Bluetooth or NFC. This is good, except for the fact that large files are not convinient for transfer via Bluetooth and not all smartphones have NFC. Others just don't prefer the cloud services. So, what Sony has done, is made a usb stick with microUSB on the one end and a normal USB on the other.
This makes it much more easier to transfer large files between your mobile device and the computer (if you don't have a cable near by) or between your friend's smartphone or tablet.
Sony also offers a file manager for Android, which can be downloaded from Google Play.
The sizes of the gadget are 8, 16 and 32GB.