Google seems to love using those "mystery meat icons". They should always include a setting for text labels on clickables. Being able to long press or hover for a tooltip would also be a welcomed addition.
> Being able to long press or hover for a tooltip would also be a welcomed addition.
This is standard for Android ActionBar icons already. If the icon is custom the developer needs only to set the: android:title property of the item and the long press will display the title and/or read it to the user depending on accessibility settings.
