The API has been developed primarily to allow external coordination with structural analysis software and Revit Structure.
At the moment the API is focused on allowing collaborative efforts with Revit as opposed to creating commands to do tasks. Not that it isn't possible, just not the focus. There isn't much support available unless you are part the Autodesk Developer Network (ADN).
We have a dedicated forum at AUGI (Revit API) where a few programming minded users are experimenting with ideas. They occasionally share their ideas and questions and might be able to help you out a bit? Not familiar with AUGI? www.augi.com you can browse the forums without joining a couple times then you need to join...it is free.