Flipboard is an RSS feed and social news aggregator made to look like a magazine. I don't believe this is what the OP is looking for.
You might be able to use Keynote or one of the office suite apps like Documents to Go. Keynote is Apple's presentation program, like Power Point, and is even somewhat compatible. Documents to Go includes the ability to edit and display Power Point presentations.
In these apps you can create slides with information on them, anything from charts, to pictures and onward. For spreadsheets you could just create a pdf of the sheet you need to display and add that to a slide.
Besides creation these apps have presentation modes. You can start them playing and just move from slide to slide. They can even be hooked up to projectors (with the right hardware) and be use for larger audiences.