The icons for accounts pinned to the desktop are all the same. A big "O." The doesn't work, and it's hard to tell the difference.
As a matter of fact, Outlook is available and upgradable through store, they have already pushed some updates to all universal apps, I remember one massive update to all of them last week...Well, the font is so small on the icon, that I can barely see it. I wish it was a stand alone app instead of being tied to the OS. Would be nice to be able to update it via the store.