(Editor's note: Ho stands in front of an xAd-sponsored coffee cart that provided free takeaway coffee for all the jet-lagged and hungover Cannes Lions attendees throughout the festival. To drive awareness of this presence, the company placed iBeacons in the delegate registration zone and at the entrance to the Palais, which triggered push notifications to people nearby on their mobile devices. Ho talks about the pros and cons of beacons in location-based marketing.)
Catch up on Campaign Asia-Pacific's Cannes coverage at campaignasia.com/cannes2015 and coverage by the entire Campaign global team at cannes.campaignlive.co.uk.