If you're reading this, I probably don't have to tell you about Freshmeat. This repository of open source code and projects has been around quite a while, and is used by a number of prominent projects. What you may not know, however, is that Freshmeat offers a well-designed Freshmeat API to help developers access the data on Freshmeat for any purpose that makes sense.
The API is RESTful, and accepts inputs in either JSON or XML. It requires an authentication token, which every active Freshmeat account already has. If you have an account already, get yours here. If not, make yourself an account, then go there. The API is completely free to use, and the only limitation is a request limit of 600 requests per hour.
This API deals with data gathering and data entry for the following data types:
Now, the question is, what would you build with it?
Mobile apps are all the rage these days, but the Android Market is often a mess. What I might like to see is an alternate Market for open-source apps, perhaps using this API, including links to both the .apk files and the source code. This wouldn't be that hard to do, and might revolutionize how open source apps are distributed.
Alternately, one might make an add-on for Eclipse to allow developers to directly upload and update their projects on Freshmeat. This way, a developer could program, maintain, and update the listing of an open source project entirely from within the Eclipse IDE. This might save some time, which all good developers, especially open source developers, find useful.