My employer own a large amount of exclusive content which is currently presented through the web. The content is mostly text, but there are also some videos. They want to make this available offline through a number of iPad/iPhone applications (tailored for a particular audience). I've already discussed the easier option of making the web content perform better on the iPad but they have seen the Flipboard app.
Are there any frameworks or samples that could be used as the basis for this application, or do I need to start from the ground up? It seems like the Lonely Planet guides use a table view for a table of contents, and then display HTML inline. This doesn't seem like the biggest task in the world and the application could be reused for each set of content.
Would it be a good idea to look at something like Titanium Appcelerator for an app like this? This would limit the ability in all likelihood to get to the same level of UI as Flipboard, and might cause problems with AppStore approval, but is there anything else I should know?