Hi,
I'm in exactly the same position as you, - reviewed in December and I know of at least 3 others. I know that there aren't a lot of spaces up for grabs but there seems to be alot of us hanging on waiting for an answer.
No-one on my OASC was given an outright yes and only two were put forward for further review. I also know of one person who went to OASC in June, was put forward for further review in August, then put forward for review in October and now is being reviewed again in December!! I don't know how long they can keep stringing you on for but that seems to be rediculous.
Good luck to us both.
Scotsman..