Mix of E3 and E1 Users On Single Workstations

Hello,

We have a client that wishes to move to Office 365. They want to push out Office Pro Plus install via group polices to all workstations for use by the E3 users.

Sometimes Kiosk Users and E1 users will use these same PCs. What experience will these kiosk users and E1 users have when they log into a PC with Office Pro Plus loaded when they attempt to open an office document:

    a) on the desktop or my documents directory

    b) on the Office 365 SharePoint site.

Will this behavior be different if they install the 2010 version of Office Pro Plus?

Thanks!

Stephen