It is hard to believe how much more stuff I can do with my iPhone.
Pandora Radio allows me to stream radio to my iPhone and listen to it on the road and at home by finding music I enjoy. See my Pandora profile.
My son has become an avid botanist in Origami Rose. He is now ranked number 10 in the world!
This is in addition to GPS, email, web browsing, listening to podcasts, calculating subnets, uploading content to TypePad, LinkedIn and Facebook...
Now if I could only find a nice set of earplugs (I liked the Koss sparkplugs) with microphone to listen to music and answer phone calls.