If you happen to own an OTG enabled Android smartphone like the Samsung Galaxy S3 or S4, this $10 OTG adapter from Brando will effectively turn your smartphone into a mini workstation. The Stand Hub has 3 OTG USB connections that can be used to connect a keyboard, mouse and a flash memory drive. It also can prop the phone up in an optimal viewing angle via the built in stand slot. I have one on the way to try out, so look for a full review soon.
Update: I’ve posted my full review.