I definitely would like to suggest Evernote to implement a mind map function to let users organize their idea. It will be much more helpful! And Graphs too! As graphical notes really help people to memorize and read easier Also, I know Evernote is a US based company so the spelling auto correct system(frankly I am not sure whether it is one of the Evernote functions) will help when the writing is not correct in American grammar. However, for the sake of worldwide users, I suggest that Evernote can establish different country language grammar like UK grammar as I am British English user. Thanks!