These will be no longer available.
FBML will no longer be supported as of January 1, 2012. Aside from security and privacy related bugs, we will not fix any bugs related to FBML after January 1, 2012. On June 1, 2012 FBML endpoints will be removed from Platform.
Existing apps will be opted into “Requests 2.0 Efficient” and "Upgrade to Requests 2.0" migrations and all developers must ensure that they are using the correct
request_id format and deleting requests appropriately. Details here.
We have added a new policy to the Facebook Credits Terms that prohibits routing Credits from one application to another application without our prior authorization.
2.14 You may not accept Credits in one application and deliver or transfer the purchase to the user in another application without our prior authorization. For example, an application solely designed to facilitate transactions is not permitted.
Applications that are not compliant by January 1, 2012 run the risk of having their Credits disabled shortly after.