Unlike the M series, which remains unique in many ways, this seems unimpressive compared to some other interchangeable-lens cameras.

A 16MP APS-C sensor was available in the NEX-5 several years ago, and the tiny magnesium body of the NEX-5 is sexy as hell.

I would look at the Sony and Samsung compact interchangeable lens cameras if you want the best sensors, lens choice, and UI. The Sony a6000 is an awesome camera by any measure. Some of the new Samsungs have a "Google logo" Android complete with Google's suite of proprietary apps, and Google is doing some interesting things with the camera APIs.