iPhone belongs in your toolbox too!
Searching for something new and different, I came across this article from a person who’s figured out how to use his iPhone as a tool when doing home projects. With the new application options, you can: use your phone as a bubble level, the camera can be used before taking a motor apart with zoom features, as well as a larger picture display than typical cellphones; or as a dynamometer. He also includes some “tongue-in-cheek” ideas!
Check out how this person has used his iPhone.
http://www.popsci.com/diy/gallery/2008-08/turn-your-iphone-tool