I think there is a missing boot option on Live media created by
livecd-creator: boot from the system default bootloader. Since the Live
media (CDROM or USB key) created from livecd-creator is not ejected when
the system is restarted or shut down, the user needs to remove it
immediately after the system starts up if he doesn't to boot from the
live media. The option to boot from the system default bootloader would
be a nice addition for advanced users.