Next week, Sony will launch an all-new campaign in the UK called Xperia Unleashed, which will see thousands of those little robots from Sony's Xperia adverts take up residence in and around London and Manchester, and on the web.

If you manage to find one of Sony's little hard-working critters, nab the alphanumeric or QR code on it, and upload it to Sony's Facebook page. You'll be in with the chance of winning one of thousands of different prizes.

These prizes include Xperia NXT Series handsets, tickets to movie premieres, gig passes, and DJ sessions.

Hints to the location of each of Sony's Xperiabots will be shared via Twitter, and in a dedicated section on Sony Mobile's UK Facebook page.