Sony teases VAIO laptop-tablet combo, set to unveil at IFA 2013 - photo 1Sony teases VAIO laptop-tablet combo, set to unveil at IFA 2013 - photo 2Sony teases VAIO laptop-tablet combo, set to unveil at IFA 2013 - photo 3Sony teases VAIO laptop-tablet combo, set to unveil at IFA 2013 - photo 4Sony teases VAIO laptop-tablet combo, set to unveil at IFA 2013 - photo 5