fab asked me about the use of mobile blogging... is it really useful ? I think it could help for just in time blogging...to post quick thoughts (or a reminder like a post it), especially if we consider the nano/microdocument format of this kind of post. The fact that you can also send pictures (or maybe audio comments in the future) is also interesting. Additionally, group moblogging could be a possibility for field research/acitivities (for children who explore a museum for instance, collecting cues about a specific topic, writing a we-blog with their impressions, pictures...).
-> moblogging sounds nice for individual knowledge management as well as collaborative activities (smart scenarios are yet to be created BUT I do have few ideas about that)