I have had my iPhone for almost two years now. My husband surprised me with it for Christmas 2010. We had purchased a tiny little phone with a flip keyboard for our daughter as she approached junior high and prepared to ride the city bus. Even though it was the cheapest little phone at the Bell store with the littlest and more basic plan, it was still nicer than my ancient phone. My husband didn’t think this was very fair, so the night before Christmas Eve he removed my phone from my purse and went and traded it in. Imagine my panic and distress to be running around last minute shopping on Christmas Eve and discover my phone gone! He was almost busted! 😉
Anyway, on Christmas morning both me and my daughter were very surprised—and I was a little relieved to find out I hadn’t lost my phone!
I hadn’t been pining for an iPhone or really considering it, but now I can’t live without it. And it has been quite handy for my studio too! Here are some ways I’ve used it:

Recording my students for feedback–this was especially helpful to them in preparing for recital and exams
Finding youtube videos of piano pieces or orchestral arrangements to share with my students and use with Fun With Composers
Receiving text messages from parents if they are stuck in traffic or unable to make it
Music Theory apps

I admit, I am still discovering new ways to incorporate it. I am sure there are teachers out there who have many more uses and I sure would love to hear about them. At a recent teacher development meeting we were even asked to bring an iPhone, iPad, or laptop if we had one for a session on technology. When I looked around at each table I noticed that almost 50% of each table had an iPad. Now, I sure would love an iPad, it would be easier to see what’s on the screen and someday I do hope to get one, but for now I am finding that my iPhone can pretty much do everything the iPad can–just in a smaller version.