Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A walled garden, is an analogy used in the telecommunications and media industries when referring to carrier or service provider control over applications and content/media on platforms (such as mobile devices) and restricting convenient access to non-approved applications or content. For example, in telecommunications, the services and applications accessible on any device on a given wireless network were historically tightly controlled by the mobile operators. The mobile operators determined which applications from which developers were available on the devices home portal/home page. This has long been the central issue constraining the telecommunications sector with developers facing huge hurdles in getting their applications onto devices and into the hands of end-users.

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