We see a lot of pre-war technology left over that survived the bombs falling and often encounter the odd robot on pacification routines in the wastelands as well as in service to the intrepid wasteland engineer who has them guarding their settlement. In FO3 we could teach Big Town how to reactivate old robots for their protection...
Now as a participant and gamemaster of Tabletop RPG's and my current Fallout derived campaign that I am running for my group I got to thinking about what other technological wonders could exist in secret government labs or places like the Commonwealth...
Feel free to review my past postings and comment on them and leave ideas for their related topics.
Original postings
http://www.gamesas.com/topic/1501197-vehicles-non-canon/
http://www.gamesas.com/topic/1501197-vehicles-non-canon/
http://www.gamesas.com/topic/1487537-fallout-esque-apocalypse-tabletop-rpg/
http://www.gamesas.com/topic/1506971-pre-war-armor/
http://www.gamesas.com/topic/1505064-weapons-non-canonexperimental-prototypes/