There have been an analysis of how the command 'make' may be used to improve the boot time of a linux machine at IBM; (http://www-128.ibm.com/developerworks/linux/library/l-boot.html) I would like to see this feature as an alternative for future Fedora releases as an alternative to the normal RC script loop.
This was considered at one point in the past and rejected; realistically, we don't want to be maintaining multiple ways that the system can boot.