Today Kojima is showing off tablet and smart phone functionality in Metal Gear Solid V: Ground Zeroes. You can use these devices as Snake’s iDroid and display the map on them.
“Today checking XBOX-ONE with multi tablet. I put out Snake’s terminal “iDroid” screen during the game.”
“Displaying the map, how convenient!”
“Of course, you can play not only w tablet but also w smart phone.(shot by Okamura-san)”
Source: Hideo Kojima Twitter