Since discovering a dedicated flashlight on the pipboy - http://i.imgur.com/rNFR0iE.jpg
And since we can modify armor, and weapons, as well as craft accessories for armor and weapons with environmental clutter, I can't help but wonder now if we can modify the pipboy.
Will we need to upgrade the memory, or add medical cartridges that automatically administer a stimpack, rad away or something?
Can the flashlight be adjusted between a focused beam, diffuse wider range, or even an enemy-confusing strobe?
It's food for thought.