Its always the moving parts that will get you
3aug2013: Cristyn and I bought iPhones two and a half years ago. I think mine still keeps me more organized than I would be otherwise, even though I lost track of e-mail last November and my Inbox is now an unnavigable mess.
The home button on Cristyn's phone has recently become glitchy, however, so today we went to Apple store to replace hers. I thought about getting a new one, too, but declined. It would have features my present phone doesn't have, but nothing that would would actually make a difference to how I use it.