I think they will have to sell at a loss, because otherwise the device will be more expensive that people will be willing to pay for it. With that said I don't expect them to sell it with a big loss, So my estimate for the price is around 300-350 dollars, with Sony lossing something between 30-50 dollars on each console.
About the battery life, it seems fine, I am a little more worried about the size of the device is not pocket friendly.










