I want to create a universal apps. I have already done some apps for iPhone. Now i want to start a universal apps which means the app should be runs in iPhone and iPad. I do
If UI is your only difference, you just need to have different XIBs for each platform. Then you configure in plist files, which XIB you'd load on each platform.
This link helped me a lot http://www.weston-fl.com/blog/?p=563