back in ye olde days ... when Olympus had OM-1 and OM-10, that might hint at E-P1, E-P10 naming.
mmm, a smaller, plastic body - I was wondering what to do with my 17mm since my two Voigtländer lenses arrived

PS - the original Olympus OM-1 was actually named M-1, but the people that make stupidly priced cameras whinged about it