The tech. world has been rocked by a series of high-profile acquisitions over the past couple of years, but whilst Facebook's purchase of WhatsApp is perhaps the most memorable, Microsoft's buyout of Finnish telecoms giant Nokia last September is right up there. We always knew that the Nokia branding would eventually make way for something a little more reflective of the new ownership, a notion that was recently confirmed with the announcement that high-end Lumia handsets would change from Nokia Lumia to Microsoft Lumia. Now, for the first time, a leak out of China gives us an idea of what these devices will look like with their new logo.