System Memory - 0.5mb - 1.6mb
http://forums.coronalabs.com/topic/39901-system-memory-05mb-16mb/

Memory: what are "safe" memory usage thresholds for system and texture memory?
http://forums.coronalabs.com/topic/28990-memory-what-are-safe-memory-usage-thresholds-for-system-and-texture-memory/

Acceptable Memory Usage?
http://forums.coronalabs.com/topic/16482-acceptable-memory-usage/page-2

Remove Object References In Groups
http://forums.coronalabs.com/topic/32712-remove-object-references-in-groups/

Garbage collection problem
http://forums.coronalabs.com/topic/6516-garbage-collection-problem/

Faster Garbage Collection With Corona
http://jonbee.be/post/2090082695/faster-garbage-collection-with-corona