I'm not sure if I'm going down a crazy path with avoiding using our office suite 2010 that is installed and using the primary built in mail app. Please proceed with your opinions but I do know they have enhanced it with the 8.1 upgrade. Anyway, the exchange mail is set but the calendar app does not show "people's calendars" like in OWA. So do I need Outlook 2013 after all or can I use office suite 2010 with outlook 2010 and not have the mail 8.1 integrated app not conflict with our daily workflow? Is mail 8.1 a "feature" that can be turned off? Last thing, I setup the Surface Pro 2 with an Outlook.com account that I created on the fly. I'm not sure if I could have avoided and still benefited from all the 8.1 features. Perhaps, it's causing more of a mess now because I have two email accounts (exchange and outlook.com) to deal with. Anyway, I'm still a relative novice to 8.1 so detailed responsesare appreciated.