I would expect they would be listed on the grounds map again this year.

They *are* missing from the current 2012 revision of the camp scholler map already posted.

Maps should be here as they post:
http://airventure.org/planning/schedules_maps.html

Last year's scholler map (with wi-fi):
http://airventure.org/images/av11_schollermap.jpg

Last year's grounds map (same as current link 07.07.12):
http://airventure.org/planning/av11_visitormap.pdf

You can see last year's locations on last year's maps (until they are replaced?)
Look at the map legend to see what the symbol for the wi-fi transmitter locations are.