Oh did not know that So I assume the OA.Central app has far better controls for creativity than the standard Oly Share app for OMD?The most important difference is that the Olympus Air can be custom programmed if you have that need for a customized use. And I know of no way to remotely control a zoom setting on the GM1 or GM5.
To me, the Air is an inexpensive, highly customizable process camera. It's not a general purpose piece of equipment the way the GM1/GM5 are.
G
Also, did not know that power zoom lenses could be remote controlled with the air. This is a huge bonus.