UEFI GTP fdisk is a disk partitionning tool running under UEFI/BIOS
UEFI GPT fdisk is a port to UEFI of the famous GPT fdisk partitioning tool, see http://sourceforge.net/projects/gptfdisk/ . Now since this program runs directly under UEFI shell you don't need to *boot* the system to convert/edit partition tables.
Provide an interface to the /dev/nvram, by property name and value. The key component of this project is a set of nvram description files. Provide a clearinghouse for nvram definitions.