I find that I can
[picker setToRecipients:[NSArray arrayWithObject:@"My Name <myname@example.com>"]];
and it nicely displays "My Name" in the To: field when composing the email, and delivers it correctly to myname@example.com, on my iPad device. Looks good in the iPad simulator too (can't send though of course).
But the iPhone simulator just shows "1 recipient" on the compose screen. Don't know whether it would send it ok or not, don't have an iPhone device handy to test that.
Has anyone else gone down this path? Any way of getting the display-name on the iPhone compose screen?
Thanks