Sketchkit
The OmniGraffle stencils for the initially Keynote-only Sketchkit, a wireframing toolkit for iOS found here: http://www.sketchkit.com
Sketchkit includes pre-drawn iOS interface elements that can be used to create wireframes for iPhone apps.
Shared under Creative Commons Attribution ShareAlike 3.0 PDF version can be found here: http://cl.ly/313D3W1e1s0j1C2H3V2G
Questions? Read more about
installing stencils.