Fill 0% on the layers.
Blending Options-Gradient Overlay

Create Apple iPhone Mobile Phone Design in Photoshop CS

Gradient?s parameters:

Create Apple iPhone Mobile Phone Design in Photoshop CS

Select again the instrument to choose
another clich? shown in the next table with red color.

Create Apple iPhone Mobile Phone Design in Photoshop CS

Represent a grey color pointer on the button.

Create Apple iPhone Mobile Phone Design in Photoshop CS

Blending Options-Inner Shadow

Create Apple iPhone Mobile Phone Design in Photoshop CS