1. Through email:
a. Open the iPhone's Mail program;
b. Touch the email with the script attached;
c. Touch the script icon;
d. Touch Open in the Final Draft Mobile App.
2. Through iTunes filesharing: http://support.apple.com/kb/ht4094
3. Through Dropbox:
a. Open the Mobile App;
b. Touch the plus sign at the upper left;
c. Touch "From Dropbox;"
d. Select the script you wish to open;
e. The script will appear in the list of scripts in the Mobile App. Simply touch the script name to open the file.
IMPORTANT: Only FDX files (ones created in Final Draft) are openable in this application. It cannot open FDR (Final Draft 7 / 6 / 5), PDF, DOC, HTML, TXT, RTF or any other kind of file.