On the list page, if you choose a field type of "Hyperlink" you have several display options, including content from another field. This same functionality would be helpful for the field type "Email hyperlink".
This really became apparent to me when I wanted to pre-populate the subject and body of an email message. I altered the SQL query to include
"select fieldname + '?subject=SubjectLine&body=MyText' as EmailLink".
I then made this an email hyperlink and it is not nice to look at on the web page, as you can imagine. Maybe there is a better way to achieve what I'm trying to do, but simply having a different display field would work for my situation.
Thanks,
Tim