In the fourth and final daily podcast from the ITS World Congress in Vienna, Paul Hutton finds out what's worrying a man who's been to all 19 of the congresses, gets news from Traficon, IRF and Hodos Media, talks to Swarco, InnovITS snd Navtech Radar, while Kevin Borras really does give his two cents about an aspect of the congress's organisation and Sarah Hawkes investigates Vaisala. There's also AustriaTech's guide to Vienna and Kapsch pay tribute to a great event.