Nice review of the 60mm macro.
I stumbled upon this picture driven user video review. It's an enjoyable very optimistic review. Nothing wrong with that, but don't expect a lot of charts and graphs.
In my opinion, this is one of the most interesting lenses in any mirrorless system (at least for me). It's the only 1:1 macro in mirrorless that I know of, and it seems to be brilliant on the E-M5. This combo is the one that might get me to leave my DSLR at home.
What if the hokey pokey really is what it's all about?