It is a fine balance between simplicity and all the stuff it would be great to be able to do. When I am working on my mobile devices the most important thing for me is to be able to quickly add information and to be able to quickly retrieve information. Big buttons and easy access is always good. Hunt friction and continue to make Evernote a life-tool.
A tip for my fellow Evernote users; The app "Say&Go" - one click and it records and send a 10-15 second voice note to Evernote. Great to use in the car.