For me, the trick answer is this: a great zoom lens. Not just good, but great. Comparable to the 14-54 mm moderately fast and good quality all purpose zoom that came out with the E-1 kit when it hit the shores. )Alright, for the bird shooters that stalk cranes and herons, one good zoom telephoto. And for the inconspicuous nighthawks of the pavement, an adapter for a Leica 35mm Summicron will do ) No offense intended. Of course, we will grouch if the LCD does not swivel or a least tilt. ( tilt is fine, when you think about it) We want it to be small, but still feel right. It does not have to satisfy all shooters and does not have to bring along a lot of prime lenses. Olympus could also market its own line of adapters. Then salesmen could pull out any old legacy lens and show that it works with whatever tools you know and love. I 'heart' one 95% at the ready lens with close focus, always have... So, I am proposing the above ( the first brilliant and versatile lens, besides the Crackerjacks plastic ones that seems to be so common these days on the Best Buy models-)- as more important than most any other feature I can think up. How about that thought? For you, my good friends of the format ( no duffers/ yard sale only buyers need reply), what is the must have , sine qua non quality -for you to add this Olympus forthcoming entry to micro format mount system to your kit?