As I was taking photos and wandering at the mall twittering once or twice I had a thought. Given that pictures get taken onto cameras with date stamps for the "date taken" and twitter stuff gets posted with date stamps. It should be possible to use a combination of twitter and flickr to annotate photos with text. Basically the idea would be to have a mash-up service which looked both at a flickr stream and a twitter stream and found times where there were pictures taken closely in time with twitter posts. It would then associate that information graphically such that the text of the tweet was included to annotate the images taken on the photo. You could use eye-fi if one was inclined to have no latency. It is probably a major abuse of technologies but isn't that mostly what people do with flickr and twitter.