Currently Being ModeratedMay 3, 2012 8:33 AM (in response to limonlin)
When you are sending an email you can tap on the "from" and change which address you want to send from. Also when you are in your email go back and pick which account you want to view and if are not in the "All inboxes" section it will default to which email account you are using.
Currently Being ModeratedMay 3, 2012 9:11 AM (in response to limonlin)
Settings, Mail Contacts Calendars, Default Mail Account, and select the one of your choice.