I don't know much about the Olympus engine, but I read an article quite a while ago on the still-born Boeing SST that claimed it's engine was going to be the first commercial engine to use 'film cooled' first stage turbine blades (that's where the cooling air exits along the surface of the blade and creates a 'film' of cooling air over the blade - common practice in current turbine engines).
No, I can't vouch for it's accuracy
