Hi, I was accepted into and paid for the iPhone Development Program. I was going through the steps of setting everything up and noticed this little bit. " The device may only be used for development and testing purposes until that version of OS X iPhone is publicly released." I only have one iPhone and am a lone developer. I need to be absolutely sure I can still use my iPhone for day to day calls, work, etc with the Development iPhone OS installed. Can anyone provide first hand knowledge of how this affects an iPhone?