Like I have said for the last 3+ years, mobile functionality’s future is in mobile web, not in native app installs.
HTML5 makes sense here of course. You still need to consider browser compatibility however, which too many people skip right over.
Give me a ring today and we can discuss how to make your next iPad/Iphone/Android project full interoperable over the widest array of devices and marketable to audiences both old and new.