This was asked a while back. I dont think there are any emus in development at the moment, but a few people seemed interested, so who knows what the future brings?
Craig had one going at one stage... not sure what happened to it - probably, he picked up Doom to dabble with, and atm doesn't have time or something. Just a guess.
Looking forward to DareDevil Denis BBC on the move, though...
Only games I've played on the BBC are Dardevil Dennis, and a few "educational" ones (some of which are quite fun - one where you have a path you have to travel without crossing over yourself... great fun )
then again, unsurprising since they were my School's computers (although I now have them - they thought of me when upgrading )