If I had the iPhonus for a day I would use it to just play around on random apps all day. I would want to see if I could figure out what each app does. I would probably be try to figure out which app I liked the best after playing around with them. I would want to see if any of the apps did anything special or helped figure out something else in a different app. I might try going onto the different pages if there were any others to see what apps were on those as well. If any of the apps changed anything on the phone or enabled something on the phone I would try and use them to see what they do. If any particular app caught my interest I would probably be on that most of the time.
