When you create notes, from the deal detail or from the menu "notes", tap on the plus button at the bottom of the screen. You can create a new note or import notes "From Evernote".
While creating new notes, you can always decide to sync them with Evernote, tapping on "Sync with Evernote" and choosing the notebook.
Just go in the Note area e click the + button, now here you can choose to ad a note from your Evernote.
If you have any problems or questions write us at firstname.lastname@example.org
Remember that we haven't released Evernote integration on our web version yet.