** Update 09/15 @ 13:30 PDT **
Our software team has resolved our issues with the new API methods for our last portal release and our API has been updated. You may now use the new API methods related to GSIs.
We have found an API regression that has forced us to revert to the previous API version, 1.2, today, September 10, 2009, at noon. Users cannot edit, delete, or restore their MyGSIs via the API. It is available through the portal. We will issue a hot fix, as soon as it becomes available.