What's app is cool. Finally you get to see if people have read your text and when they are typing. You'll know if they deliberately ignored your message, or it's just that they're too busy.
I like to play what's the difference, take weird photos on the go and flip the hard cover over to close it.
I am very happy with my iPhone thus far. If not for Fred who downloaded everything for me and created ringtones, I would have thought it to be a white elephant. Everything about my iPhone reminds me of him.