It would be nice to have that info pop up, but I look at it like a "fog of war" type of thing. I like not knowing everything of each map. The surprises add to the fun for me.
ME-262s are available at all airfields, the cost (perks) are the only factor to a launch.
ME-163s are only available at the uncapturable bases near the starts like Shane said.
The other things, some players take notes and have them on hand to reference, while other have played the game so much they not only remember those things, they are on a first name basis with most of the trees in the game

I dont think they will add them to the message of the day as that message would have to be manually changed each time the map changes. Also it would take away from those players who like to create there own notes or like other just enjoy the surprises.