In no specific order of importance:
Destination selected data:
- Route Plot Destination
- Wanted status in destination system
- Personal standing among each faction (allied to hostile)
- Economy type(s)
- Availability of a shipyard
- Availability of outfitting
- Availability of Universal Cartographics (unless this is available at every station anyway)
- Full list of imports, exports, prohibited goods
- Local GalNet news (only once in-syatem)
All of the above are to provide you with a set of details to help determine your journey. 3rd Party developers can use this data to give information on a target a user may wish to find out more about, without necessarily having to go to the Galaxy Map, System Map, etc (e.g. for those of us who want to put our tablets to good use as part of the game interface).
Current system data:
- Current system telemetry (which frame of reference are you in e.g deep space or the name of the planetary body you are orbiting)
- Target e.g. a ship or station in the current system
- Wanted status in current system
Most of this is available from the cockpit view anyway, but it's a convenience for some players who like this information duplicated on a separate display, and for those of us without tracking hardware or a VR headset.
General Game Stuff:
- Date and time in-game
- Current credit balance
- Current Commander Profile e.g. all 3 rankings, standings with all major factions etc
- Transaction data (missions and fines as per left cockpit panel)
- Ship function telemetry (everything including hull integrity and module statuses - see below)
- Advanced control telemetry (e.g. to automate certain procedures such as stowing weapon hardpoints, resetting power distribution and engaging the FSD, with or without using 3rd party software e.g. Roccat Power Grid for tablets and phones)
The general game data such as ranking, date/time and credit balance is useful for at-a-glance without resorting to switching to a cockpit panel in-game. It could be useful to display on a tablet so you can glance at it as you are handling something else on the game screen itself.
More aspects of the game API would be beneficial as and when certain new features are added to the game itself e.g. altimeter, atmospheric data, mining rig and exploration drone statuses, crew status, internal storage (for things such as passengers or human crew members who will need to be supported by the ship), time to last service, fault reporting (a-la Hard Disk SMART equivalent for ship modules, to warn of impending failure) and so on.
Having all of these exposed in the API would be useful for developers who want to code their own companion apps to the game, and especially to those of us who want to code our own control automation apps (so we can tap a single tablet/phone virtual button to simultaneously deploy the landing gear, bring our throttle to a halt, and perform other tasks e.g. reset power distribution, and tap another one to deploy hardpoints, bias power to weapons and systems, switch to a specific fire group, and transmit a pre-set message to a player target to save typing and losing precious seconds that might result in your ship getting destroyed in the process).