If the iPhone added an alarm/scheduled notification API and location trigger API, and functionality to start an app up automatically w/ user permission and then

If the iPhone added an alarm/scheduled notification API and location trigger API, and functionality to start an app up automatically w/ user permission and then quit itself and restart the previous open application. This would replace most apps that need backgrounding for various tasks. Apps like locale, sweet dreams, im apps and calendaring apps could all be implemented with this kind of functionality (some of them not as well with android), yet avoid backgrounding applications.