I also spotted one on the building your apartment is in, but I didn't take a picture.
I'll try to find that one tonight and post the picture. I remember checking that building but I must have missed it or maybe it was added later. I guess I'll post it with the other ones I took in the Xi: Continuum - all clues and info from NA/EU thread.
Good Echo, I noticed these also. They look like they should be stacked ontop each other.
I thought so too, we'll need to keep a look out for more. By the way, after meeting an Aeropal, I'm thinking those objects you photographed buzzing Aurora a while back were actually drones.
EDIT: Ok, found the one xigbar93 mentioned:
azureflamelord mentioned a fifth one in the XI 2 Has Begun! thread which I located near the plaza with the green lighting.:
anamri has combined the images here: http://community.us.playstation.com/t5/PlayStation
Sseems this thread would be the best place for it.
Thank You for the link. I have posted in the other thread and its very informative. Awesome