With such a high proportion of us presenting I'm not sure that printing the word Presenter is important. But a larger font would have helped. As for the idea of printing on both sides of the badge, that would be good, but you'd need it to be on both halves of a folded over badge so that all the miniguides, tshirt tickets and beach party gubbins could be put between the two halves rather than obscuring things.

Generally I think that the moderation was more effective at keeping people to time than previous years - I only witnessed one incident of a presenter being annoyed because he was third  and much of his time had been taken by the two previous slots overruning. But our approach could be far more interactive, we are all used to interaction rather than being passive recipients of information. Yet at Wikimania many speakers who are given a twenty minute slot drop the time for questions and try to cram everything into twenty minutes, rather than working out what they can say in ten minutes and giving the audience ten minutes to ask questions/ refute their argument. 

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