I think it is, but I also don't think there's a ton compelling to APS-C. If I'm going to carry a DSLR, it will be FF. If Canikon release the (rumored) smaller/cheaper DSLRs (they can cripple the video if they like-- I don't care), then that'll be me buying back into DSLRs. But the APS-C format size doesn't make sense to me. It drives much larger lenses than m43, yet with not much more IQ benefit. Though I've never used the vaunted Pentax cameras, or the new Fuji X series, but I've worked with Canon, NEX and Nikon. They've each had their own issues. If Oly releases the OMD sensor in the new Pens, I'll be good for some time to come.