While I don't do a ton of flowcharting and graphing, I am a sucker for a great user interface (UI) and that's exactly what InstaViz gives me. While this App is a "+" App and it works on your iPhone, iPod touch or iPad, it really sings on the iPad. I love how I can use simple finger gestures and the App automatically converts them into vector shapes. I can add colors and text and then easily share my ideas in various formats. Rather than tell you about how cool this App is, it's easier to show you. Check out this video:

 

httpv://www.youtube.com/watch?v=Cc7ZDzvBkfk

 

You can get InstaViz here from the App Store: Instaviz