It's the starting gun for the busiest time of the year in tech: IFA Berlin. Europe's largest tech trade show has kicked off, with more folding phones and robot lawnmowers than anyone could possibly need. With the "smart home" facing privacy and interoperability concerns and the smartphone industry dogged by falling sales, can we still get excited by new gizmos? FRANCE 24's Technology Editor Peter O'Brien went to Berlin to find out.