Taken from an early postach.io blog - http://blog.postach.io/tumblr-import-twitter-posting-ui-updates-speed-increases You can import from Tumblr! Any text, image, etc. that was previously "published" on Tumblr will come over to Evern...
http://blog.postach.io/tumblr-import-twitter-posting-ui-updates-speed-increases