Developers looking for trends in Twitter search are finding it more difficult now that the micro-blogging site has decreased the search history to four days. Previously going back weeks and months, the backlog has steadily decreased, now too short for some types of applications. At the same time, the newer streams have become the go-to API for former search use cases.
Taking pictures on your iPhone gives you a great deal of data embedded in to your photos. Location, camera type, exposure, even camera orientation. But what if you want more. Well, MetaPhoto (currently available on the iPhone) aims to further enrich your photos. Using the Urban Mapping API, MetaPhoto looks up a great deal of information about the area a photo was taken and adds it to the photos header.