My main list manager system is Omnifocus on the iPad. There is no calendar function there either and it doesn't bother me a bit.
Evernote wasn't designed to be a list manager (although you can make it so) and certainly not a calendar, contact manager, or anything other than just a great tool to store information. But people like it so much they want it to be everything for everyone. I feel like these companies ought to do what they do best and not attempt to please everyone--because they never will.