One little suggestion: Have you considered using the default share icon for Android, instead of the current one? Since it opens the share intent list for new docs, it would be more familiar to users. Here is a mockup:
Bizarre analogue watch dial. Current hour is rendered larger. Alternately, previous and next hour digits may be rendered gradually larger as well (See three o'clock). Another option is to display current hour using alternate color (Four o'clock).