After speaking at conferences and talking with developers on IRC, we've discovered that most developers are excited about our Data Store API, but are unsure of how to get started. The documentation on the wiki is detailed, but the number of function calls can be overwhelming to a developer unfamiliar with this new API. To address this issue, I created a new tool during our last Hackathon -- the Data Store API Admin tool.
The Data Store API Admin tool feels a bit like phpMyAdmin so that many of you would feel right at home. In it you'll find a list of objects, their properties, and associations, each with simple forms to help you get started. Also, we included an FQL query tool so you can browse through your data in an easy, visual way.
To access the Data Store API Admin tool, go to the Facebook Developers app, click the My Applications link at the top, then click the DataStoreAdmin link for the appropriate app.
We'll keep adding more to this tool as time goes on. Thanks for your feedback!