It's already is being ported (or at least was - theres been no news about it for ages). Looks at the ports page - http://dunkels.com/adam/contiki/ports/
Yeah i know it's been ported but as you said there has been no news about it for ages so i would say we need some1 to port it again. I dont think the orignal porter has done anything on it or is even gonna do anything about it.