I was coincidentally thinking about fast travel recently, though I’m not sure tying it to a PDA is necessary, as it’s mostly a convinience function. Might have a better version if you have the PDA? not sure.
I was thinking just setting waypoints on the overmap would be nice, and then you could auto-run between the points unless you hit an obstacle or saw something dangerous.
Really I’m at a loss for what use there would be for computers in the game, some minor stuff like using a PDA to download maps and data, perhaps communication, and a way to interface with existing systems, e.g. unlocking doors and hacking robots.
The “Data” part might cover virtual books, and might provide some mission hooks (read something that makes you aware of something instead of it just coming from a NPC)
That having been said though, I’m always interested to see what the forums come up with 