If DEV and PROD-Applications run on same CF-server, be VERY
carefull to use different names for the application-name
(Application.ApplicationName).
CF stores application-vars under that string, if both have
the same, they share the application-var-scope.
Happened once on me, everytime I called my dev-site, the
application.datasource was set to dev-DB for the prod-application
too.
When noticing after some days ... part of prod-data was in
dev-DB, rest in prod-DB.
Biggest DB-mess I ever had !