When a customer calls me and ask to do an app design I almost always deliver it placed on a device. This makes it look more real and it's easier for the customer to comprehen what they are actually buying.
All my high fidelity app designs are usually done in Photoshop. Sometimes we create only a few screens and sometimes all the screens.
With the rise of the Surface Pro 3 I have long sought for a high fidelity image or Photoshop mockup but without luck. Last night I sat down and created one and posted it on my behance profile.
The Surface Pro 3 muckup it's now available for download and free to use.