[bartzumbari]

I hear what you're saying about layer importing, but it would still be a valuable capability if you could at least make a go at some sort of mapping from visio layers to omnigraffle layers. It sounds like the mapping is straightforward if the object in visio is only assigned to one layer (this is certainly always the case for myself.) If the visio object is assigned to multiple layers, then you could just choose the first one.

Bart