I realize this is about a year late... but for others who are interested. I have a gallery (list) of employees and when I select an employee it takes the user to their "details" screen. On that screen I put a mail icon with the OnSelect function set to:
Where SelectedEmp is a variable for the selected record and 'Email Address' is (obviously) the column/field containing their email address. This will pop-up a new Outlook email with their name populated in the To: field of the email.