2009/7/7 Vincenzo Ciancia
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Martin: it suffers from the same problem as full-screen movies. If I am preparing for a presentation, I can be interrupted by mom, and if I don't want it I can set my state to busy. If I am actually showing the presentation, then I certainly don't want to be interrupted by ordinary notifications.
Take a look at my last message to this thread: I think it addresses your point much better. In summary, I think we should not pay so much attention to the data source, but to the data destination. If you're displaying to the TV or to a projector, you'd rather not have notifications there.