Allow editing of events in Cal mobile
I have a recurring meeting (carpool) that I respond to, and that I frequently need to edit my response to from the mobile app. Example - I head out the door and realize I'm running too late, I need to change my carpool response to "no" but currently cal has this event as "read only". I then have to open the clunky native calendar app to change my response, when otherwise I use cal 100% of the time.
Any.do released a Calendar Integration which allows you to sync with the native calendar on mobile devices :)