Handheld Galnet and Menu Interface for when we get Space Legs.
This has been my assumption, ever since they launched the stories on Galnet a month ago:
You know how, when you're in your ship or SRV, you can look down to the left and right, and see the little pop-up screens? Navigation to the left, Status to the right? The Duradrive will allow us to see those exact same screens while where spacelegging about. The other doohickey (the Torc thing) will presumably be the cause of us seeing other helpful pop-up messages as we walk about, such as a reminder that we're running out of ammo for our laser pistol, or that the space-bat we just shot is worth 17 credits.
Presumably, we can switch off or de-equip the Torc and Duradrive, for "added realism".