He is an idiot. Not all of my friends have iPhones so I still have messaging for them also, I like the fact that with the unlimited text plan you get free mobile to any mobile calling, so yes, I still have a text plan. The rest of the world gives you more for less cost so US companies need to step up their game.
Shouldnt SMS be your preferred method of texting someone? All that iMessage, BBM, etc. crap restricts everyone from having a universal method of getting in touch with eachother. I don't see the need for any of the other text messenger applications (except for when AT&T charges an insane amount per text message).