InfoGraphics Hub is fun for finding visual representations of data on a wide array of subjects.
i Visual Info Touch Lite on the iPad was unimpressive. It was a basic copy of PowerPoint and I doubt it could create any of the sophisticated InfoGraphics seen in InfoGraphics Hub. Maybe the paid version has the "large objects library" described in the 23 Things description? The demo video shows various shapes (did not see in my version), but only used circles and text. I didn't even see a way to add my own photos. I would just use PowerPoint to create an InfoGraphic.
I did not find any infoGraphics for Kindle Fire in the Amazon app store.