I was playing through CW1 and i noticed something odd if you look at this picture. The two collectors circled the one on the left was built after the wall was destroyed the one on the right was built before the wall was destroyed and its collection area is limited unless i destroy it and rebuild it. I'm not sure if this has been mentioned before.
Yes, it was mentioned several years ago. In terms of optimixzation on Flash/AIR Virgil does not recalculate the Soylent Green at all.
I remember who mentioned it: http://knucklecracker.com/forums/index.php?topic=886.msg7598#msg7598
PS: 'Soylent' seems to be the new buzz-word. ;)