The NEX style adaptor would be the best solution for me, having already got the E-M5 and being on a budget. However, I voted for option four, "A Micro Four Thirds body with a built-in solution for optimal FT lens AF using adapter"
because I feel this is the best solution for the system in the long run and would be a very strong selling point for future cameras. Maybe Olympus could eventually do both, so that existing MFT cameras benefit from
compatability of 4/3 lenses too. Now THAT would be the best solution!