I assume you mean the Bundle Display Name that appears on the device's home screen:
You should create a localized file called InfoPlist.strings similar to the Localizable.strings file that you use for the usual text snippets.
In the InfoPlist.strings you can localize the different keys from your Info.plist. To localize the app name add:
"CFBundleDisplayName" = "My localized app name";
To localize a file: Simply create a new strings file in Xcode. Then reveal the right Xcode pane and add localizations via the menu shown here:
Using this technique you can localize any file you like. Simply add the correct version to your bundle. If you then use [[NSBundle mainBundle] pathFor... you will automatically get the path to the correct localization. We do this for sqlites, strings and sometime even images.
