What will the subscription cost? If it's reasonable, people might pay, but if they charge $ 30 per month, they won't get many subscribers. Just think AP - $30, NYT - $30, etc? Who would pay that much? And it would eat into your 3G connection limits. Plus you will almost certainly have to deal with incessant advertising on top of paying for the subscription. I wouldn't be surprised if ads took up 1/3 of the space on the screen and half of the bandwidth.