Client problems in Developer Help
You already know where you want focus the eye. Mobs store their client in their client var. Therefore, you can set mob.client.eye in mob.Login(). (Of course, one should make sure client.perspective is set to EYE_PERSPECTIVE.)
Yeah that works. However in my, Isometric Engine (Yes, I am attempting to brag, but hey its my right =P), it leads to a quick flick of the very ugly map screen when switching mobs if there is any sort of lag.