How can I view and copy an email address in a message header within iOS' Mail.app? If I reply-to-all on an inbound message with multiple recipients within iOS' Mail.app, I can't view or move/copy the email address of any recipients - I can only view the a 'bubble' which contains their name.

Curious if there is a way to view the actual email address while composing, and ideally, copy the address (in case I wanted to move it from the TO: field to the CC: field)
In 4.2 at least, you can tap on the bubble to see the email address, then press and hold on the email address.  A copy option will appear above it.