Hi everyone. I've never had an iPhone, I'm getting the 5 in a few days, I'm coming from a Metro PCS Galaxy S3. I don't know much about updating versions and everything, and I don't like IOS 7 at all (design-wise) and wouldn't want to update from IOS 6. Can I simply ignore the update? Will the notification go away eventually? And will I have to one day update it? I'm planning on keeping the iPhone 5 for 2-3 years. Thanks for all your help!