I have been wondering about this function as well. It seems that even the desktop version on my Mac does not allow indented bullets. For the time being, I use Option+Tab to indent the text. The bullet remains flush, but at least it helps me visually organize the text the way it was intended. Cheap fix for the time being. Evernote, you are going to lose more business to ScatterBrain if you don't address these "simple" issues.