I have a fully working iPhone app that was built with Xcode 3.22 and runs on iPhone OS 3.1. However, I need it upgraded to compile under Xcode 3.23 and iPhone 0S4. There are some recent git-hub forks that update the three20 library to help this process along, but this is outside my area of expertise.
Here's how it would work:
1. I will send you the Xcode 3.22 project file.
2. You upgrade the project file and make it work with the three20 library.
3. You explain to me how to upgrade the three20 library on my system as well, so I understand the entire process.