lock-in

Lock-In Buying an iPhone isn't the same as buying a car or a toaster. Your iPhone comes with a complicated list of rules about what you can and can't do with it. You can't install unapproved third-party applications on it. You can't unlock it and use it with the cellphone carrier of your...

well, i m preparing for oracle 9i certification. While reading the features of oracle 9i in the reference book i came across this point: -> "Industry standard technologies, no proprietary lock-in" What does "no proprietary lock-in" mean?