My awesome friends at SlideRabbit wrote up a really nice explanation of how they recently created an interactive infographic for a client all within PowerPoint. And if you don't read the whole thing, you can't whine and say, "But why would you do that in PowerPoint?" (Hint: It's all about client editability...)
Really nice whiteboard animation—created entirely in PowerPoint using native animation.
If you're looking to add this to your presentations, PointMadeAnimation are your guys.