Another iPhone app question for you folks. Interally we got the go ahead to run with our app. To get this far I had used vector and photoshop assets found on the web to create concept screens, which worked quite well. Basically I made comps in Illustrator and imported them into InDesign with very little annotation at this point (again just concepts.)
At this point though, we need a design document, especially since this app may be outsourced. I'm busy scouring the iPhone Dev Center right now, but I wondered if anyone has experience creating docs for an app and might want to share what they did and what they used.
One thing I'd like to know is what visual assets are actually available as "stock" to developers vs. what we'd have to produce. There seem to be some toolkits out there already.