I'm assuming that by keeping them separate, he wants them in seperate apps, with seperate alerts, badges, etc. I'm the same way. I want to be able to have two mail apps because I want my work email completely seperate frommy personal mail. When I get a new message and the badge pops up, I want to know if it's a work email or a personal one. Don't think there's a way to do this though.
Why is everyone so quick to jump on people around here? Geez.