One thing I constantly see in the mobile deployment conversation is a focus on only end-user. There is a huge corporate enterprise market there as well. Since this is where I make my money, my decision tree is a bit different. Corporate clients generally target a more limited number of devices. Also, the app store would not be a likely repository for MIS to deploy from. There is a much bigger market than the end-user only apps that most of these points reference. HTML5 and webkit make good sense on the enterprise Intranet.