Abstract: A version management system may maintain an updated installation package for a software application as the application is updated from time to time. The updated installation package may allow the application to be reinstalled using the updated installation package without having to start with an original installation package and apply successive updates. In one embodiment, a distribution medium may have a read only memory location containing an original installation package and a read/write memory location that may contain updated installation packages that are created as updates are received and applied. In some cases, the updated installation packages may include various system state parameters, as well as configuration information for the managed software system as well as related software products.

Abstract: An interchangeable covers having content for customizing wireless mobile phones is further provided with an indicator to denote whether the cover has been put to use. A wireless mobile phone is equipped to transmit a message to convey a detected first use of the cover. A server is equipped to store the message in detail or in aggregate. The server may also in addition or in lieu of said storing, accrue compensation for at least a selected one of a contributor of the content, a manufacturer of the wireless mobile phone, and a wireless mobile phone service provider.