The hope behind this letter is to implore app developers to make their apps available cross-platform. When you fill this out it will automatically send an email to the app developer (bit.ly/thinkopenlettertemplate). You will also have access to the Spreadsheet (bit.ly/thinkopenresponses) in order to add any responses you receive.
Note that Form Mule currently only sends email from the account the script is run, so they will likely respond to Dee Lanier, but your email is included in the CC: and the email itself. Your participation in this effort is incredibly appreciated!