Excluding those that already exist and will be dominated by existing institutional players (3d gaming) by porting.<p>One big one I see is repackaging content and adding interactivity. Its a new form factor, will and can be used in certain situations where a laptop is not appropriate, and an iPhone is a bit small and annoying. No flash means existing niche websites with rich content will not work.<p>Some examples:<p>in the kitchen - a cooking database / assistant with interactive cooking videos<p>yoga/pilates/excercise video instructors