Continue SERO or switch?

I'm currently on a nice SERO plan (500 anytime, unlimited everything else, for $30/mo, or $40/mo on practically any 'modern' smartphone) and am facing the end of my contract.

For as long as I can remember I've always used international phones, but that restriction is just starting to feel too restricting on Sprint. At this point my choices are: iPhone, Blackberry, or gigantor Android phone. So I'm thinking about jumping ship.

1. Does anyone have any gossip on new Android phones coming down the pike for Sprint? Is there -any- chance there will be any high end Android phones with a sub 4" screen?

2. Should I just suck it up and get an iPhone, either on AT&T or TMobile?

Thanks for any advice.

 

Based on the rumor reports it looks like the S4 Mini will do the trick. Here's to hoping it makes its way stateside