Well, apparently I have both going (as I have an exchange account and a Gmail account that I use), but what I noticed is that my Gmail account is actually present in both and e-mails sent to that are duplicated in each app. Quite annoying. I would prefer to use the Gmail app for both of my accounts, but I don't think that's possible (is it?). So that leaves me with one option, how the heck do I remove my Gmail account from the Gmail app? Finally, should I do this? Is there something vital the Gmail app offers me that the Mail app doesn't?