All atilt
Unlike Sony's QX1, the A01 clamps to your phone at a tilt, which makes it much easier to frame shots.
App driven
The remote control app's interface is relatively straightforward, and offers all the shooting features of Olympus' entry-level interchangeable-lens cameras.
Look ma, no lens
The A01 is basically the imaging and power modules of an interchangeable-lens camera.
Back cover
When not in operation or not attached to a phone this covers the back.
Beneath the cover
This determines the tension of the spring-loaded clamp based on your phone size.
Another layer deep
Beneath the clamp-size cover is the microSD slot, USB connector and the QR setup code plus hard-coded connection IDs and passwords.
Soda can
Equipped with the fully extended 14-42mm power-zoom lens, the whole unit is pretty compact.
Release latches
One releases the lens from the mount, the other allows you to rotate the clamp mount.
Big button
You can't miss this shutter button.
Unmounted
You can use the camera freehand without attaching it to the camera.
Beyond the snapshot
This is an example of a way to use the camera with a tablet and hands-free.