iPhone Photoshop Elements

I am currently working on an iPhone app, and while developing  high fidelity mock-ups to detail the product's vision I came across Teehan and Lax's excellent Photoshop file of iPhone components for just such a project. Developing the sweet looking app you create mock-ups for is still up to you. [On Edit] - For Mac users Graffletopia has a lower fidelity iPhone component set for Omnigraffle.

For Information Design guru Edward Tufte fans, Tufte out together an interesting video with some thoughts on designing interfaces for the iPhone.