It may not have much for battery time, but given one of the major target audiences (corporate types), 4hrs is fine as you are seldom in meetings longer than that doing anything that would drain a battery that quickly. I know several corporations looking at tablets for certain internal and external job roles, but would never be able to make the necessary sacrifices to integrate iPads or Android tablets which can't run their existing (and often custom) Windows apps. To be honest, I see the Surface RT as a consumer product and the Surface Pro as a business platform. I see the Surface Pro being successful in the business landscape, less so in the more price conscious consumer market. Different products, different target audiences.