Not sure if this phone will actually be offered on Sprint, but I've been longing to get a chance to check out a Sony device through Sprint for a long time:
Sony officially teases Xperia Z1 (aka Honami, Xperia i1)
I really wish Sony cared more about expanding their mobile offerings across multiple providers. I think their devices are very underrated. Not sure how their mobile support is, but I've had great experience with their TV support in the past.