And? So what. I dealt with plain old SMS for many people for three years. Being able to iPhone some/many of them now is a bonus that in addition doesn't change how iMessage works. Moreover, in my experience iMessage sends better MMS to non iMessages users than my Android phones did MMS.
iMessage is the SMS app on iPhones. There isn't an iMessage app and an SMS app. On BB BBM and text were seperate apps. Yes you could change the default BBM configuration so you can have contacts in your bb contacts list SMS messages in BBM but that was not nearly as seamless as iMessage. And a new text would always come into the SMS app, not BBM. So I don't agree that BBM was akin to iMessage.
Mike
Yeah I agree, iMessages sends better MMS than any android stock text messaging apps I've used. Although their are third party apps that does just as well.
I guess I am not explaining my point right. I am just saying you would be less inclined to stick with iPhones because of iMessages if most of your family or friends stop using it. It would still be a great SMS app. However it would not be as critical.