144 Personal Content Experience: Managing Digital Life in the Mobile Age The importance of capturing the context becomes evident when enjoying the content. It is diffi cult to organize images, music, and other media by using their content as a key. For example, grouping all photos by the people (that is, analyzing the visual content and detecting and recognizing faces) would be a nice feature, but is beyond currently available technology. You would probably end up having photos of your wife appearing together with images of cows on pasture, and although that might lead to some interesting conversations, it is prob- ably not what you want. With the help of context information, a rich array of grouping and organization schemes can be applied. The recorded Bluetooth IDs, for instance, can provide some hint towards people nearby. In essence, context information can be used to create automatic relationships between the content created or received in the same context. THE 60 PENCE LOOT Angie wants to show Millie her good close-up pic of 60 Pence. Millie is for some mysterious reason quite into the music of that fatso rappa, and she is so pissed that she was not able to come to the Hyde Park show due to a funeral. Angie does not care for that gangsta too much, but she might as well share the pic she took by the stage – only if she could fi nd it. There are some 40 000 pics on Angie’s mobile. Looks like that good pic she took is simply not there. Where has it gone? Anyway, there are lots of others. Angie selects the “60 Pence Loot” collection that Eddie sent her. He had collected all content that he and his friends had bootlegged at that concert, complete with location and other context information ripped from the concert arranger’s site. Poor pics though, hers was better. The videos are ok, however, and the MP3 links in them come in handy. Angie copies the context parameters from the Loot collection and uses that to query for related pictures. Ok . . . these are hers, with matching contextzz . . . right, there’s the one. That 60 pence guy is one big fat badass. But who carez. Yo Millie, you ready for upload? With context recall, Angie can fi nd all music from Eddie, and then do some more fi ltering to fi nd all fi les that have links to 60 pence’s concert entry in the diary. You do not need to type any keywords or try to remember what, if any, keywords are in the music fi les, but use a very natural way of browsing through associations between events, people, and fi les.