I've added two new features to Resume Designer.
The first is support for bold, italic, and underlined text. When you're editing the body of a section, you can select some text (by double-tapping a word and then dragging the ends of the selection), tap the "biu" item in the pop-up menu, and you can choose Bold, Italics, or Underline.
And the second is the font list has been expanded to include the new fonts that Apple added with iOS 6. You can see a full list of fonts that are available on the iPhone or iPad over at iosfonts.com.
These changes are available now in Resume Designer 1.7. The app still works on iOS 5, but these new features are only available for users of iOS 6.