there's neither Note icon or To Do icon in mail in Marvericks
but it is in Mac OS X v10.6 and earlier(http://support.apple.com/kb/HT2500?viewlocale=en_US)
Mac Pro, OS X Mavericks (10.9.1)
but it is in Mac OS X v10.6 and earlier(http://support.apple.com/kb/HT2500?viewlocale=en_US)
Mac Pro, OS X Mavericks (10.9.1)
Correct. Now you have applications: Notes and Reminders. They are in your Applications folder.
there's neither Note icon or To Do icon in mail in Marvericks