Would like to ask everyone for some help. I have searched and searched for the past hour and cant seem to find any solutions. I need to change my iphone interface so that everything is in GERMAN when i use my phone. I have seen some postings but they are mostly in german and i cant read german so please can someone put a link or if there is a 3rd party app that i can install through installer for german interface please post something. Any advice would be much appreciated. I'm trying to add this feature onto the phone for my friend.

Since firmware 1.1.2, there is native support for german language already built in by apple. So you don't have to get any additional language applications. Just switch the language by hitting Settings -> General -> International -> German. After that you can change the regional format to Germany too. That's all...

thank you so much for your response. I have an unlocked phone using turbosim so hopefully it will work fine. thanks again.