Slightly off-topic, but not completely: I would LOVE to see some quantitative measurements of the effect that opening up a platform to developers has on the re

Slightly off-topic, but not completely: I would LOVE to see some quantitative measurements of the effect that opening up a platform to developers has on the respective company. End of the day, is (extra_revenue_from_custom_applications_and_exposure - resources_to_maintain_platform - customers_lost_to_crappy_apps_or_platform_issues) > 0? Obviously the formula is more complicated and varies from company to company, but I would love to see a good discussion from an insider who's gone through it.