I don't think it would work, not because the idea is bad, but because Nintendo's marketing division is really bad atm.
And with a contract it would need to be way, way cheaper to sell decently...
Gaming and phones are two different things, you don't buy a phone for gaming, which is basically what this thing is made for. Only gamers would buy a gaming phone, and that means low sales...
I think the dedicated handheld market is enough for Nintendo, it might be declining, but smartphones are not the cause for the decline. the 3DS is...







