Do you really need a new smarthone, i mean you have an Iphone 4, so upgrading to a new model wouldn't give you too much new stuff for a huge amount of money.
You can get the Vita now for cheap and it gives you a total new environment. Or maybe you just wait for E3, i'm pretty sure they announce a pricecut then.
Edit: sorry, i haven't read that your phone is broken. Go for a Galaxy S4 or S5, maybe you even think about the new Sony Smartphone - and a Vita after its pricecut!
must-have-list for platforms i don't own yet:
WiiU: Donkey Kong
XBone: Dead Rising 3, Ryse