One of my favs as well... There are many species of dendrochilum unknown in cultivation. Some from Sabah have bronze leaves and deep red flowers, I know of a mini one that has even close to 2 cm orange flowers!
That is also my favorite of the Dendrochilums. This one Dendrochilum wenzelii that I took picture two years ago in Sacramento show that was quite different in color and shape. Could it be a variety or a new species?