I didn't think it was possible, but my mom has surpassed me when it comes to dependence on the iPhone. The thing is, it's not for the reasons you might think.
Apple just released a new version of iOS. What new goodies await inside the 400-megabyte package? Not much, as far as this writer can tell. Apple iOS v4.2.6 squashes a bug in the Personal Hotspot feature included with the freshly released Verizon iPhone. And that's about it, according Apple's infamously illustrative release notes.