Haven't used a paper map in at least 5 or more years, we don't have any on the flightdeck anymore anyway. While not being the iPad EFBs are commonplace for some time now. We use a windows based tablet pc which remains on the aircraft and is made pretty much foolproof, no way to install your own software. Each pilot has its own USB stick on which he loads flightplans, updates, routings etc. during briefing and later puts all that stuff on the EFB where the eRoute-Manual reads the routing and puts all required maps up for easy use. Weight and balance as well as the performance calculation tools (take off and landing) still have to be filled in manually. However there is some work done to use the gsm-chip and automaticaly download loading information to enable automatic w&b and TO performance calculation.
With the move of our chart supplier to an iPad app there are rumours we might get a personal iPad per pilot, however even then configured using some corporate use toolkit which makes it possible for the administrator to restrict which apps the user can use or load.