A posting on the UK itSMF member's forum by Sharon Taylor, Chief Examiner, resolves a few issues with the ITIL V3 qualifications scheme, including the 21.5 credits issue. It also states that "this is still work in development and many discussions are taking place to ensure the final form of the scheme..." So perhaps APMG's announcement was a little premature, because it certainly didn't mention any further "work in development".
The key points of Sharon's post: