Last week Doc Searls posted a proposal for a sort of federated calendar feed that he (maybe more precisely, his friend Dave Askins) called DatePress. This sounds intriguing — as most things that Doc backs — though I foresee some farily large-scale security risks, even if the enterprise includes only ‘community events’ administered by different levels of creators and users. But the possible benefits of ‘calendar as a platform’ affords possibilities that could be productive indeed.