Conclusion
We have discussed the usage of content providers. On the Android platform they are an indispensable way to enable data sharing between applications. If your application becomes the first big hit on Android, the data generated could be easily shared.
There are a lot of exciting possibilities being generated from the Android platform, so to best take full advantage of these possibilities now and in future, share your data via content providers!
Additional Resources
http://code.google.com/android/devel/data/contentproviders.html
http://code.google.com/android/reference/android/content/ContentProvider.html