Do these phones just eventually wear out? I have an original that I got right after the release Nov. 2009. And after really having no problems for well over a year, now things just are not working. In order to get navigation to work, I have to reboot each time. Most of the time the incorrect ring tone now plays when I receive a phone call. And now it takes forever to get a notification when I get an email, and that has never happened before. I am wondering if the phones wear out, or if they get over their capacity?