Yes, it will most certainly be an ikiller phone. It would not surprise me if Sprint was one of the first, if not the first. They know where to invest their money after gaining so much from the S2 and losing so much from the iphone. The Galaxy s2 has been their biggest seller. Thumbs up for the Epic 4g LTE!
Could be an iKiller...never know. You'll always have thos die hard apple fans that won't give up on the iPhone. Also, seems I remember reading a report somewhere that talked about android becoming the OS of choice these days. Regardless, the SIII looks pretty slick.