Many iPad apps, especially office-style apps, are just desktop apps repurposed for the smaller screen. Tap & Edit (free) is different. It's a text entry and formatting app that incorporates gestures as an integral part of the app.
For example, a long double tap with two fingers selects a paragraph. Then you can make pinch and zoom style gestures to decrease and increase the font size. You can rotate the actual text using the same gestures typically used for rotating photos in other apps.