I’m working on a new small iPhone application. An application who can generate some basic charts and export them as an image to your image library or mail them to someone. That application will be based on the google chart API. For that purpose I started writing a tiny Objective-C framework. I published it under a BSD license on that google code project: http://code.google.com/p/gchart-objc/.
It’s currently just a first version 0.1 and it supports just the basic charts and isn’t stable yet. But if someone is interested in supporting me with that project. Just send me a message. There is still a lot to do!