--> What is a fanlisting?
A fanlisting is a website created by a fan of a particular subject, with the aim of gathering together a list of other fans of that particular subject. (from Wikipedia)

--> Who is Felt Grace?

PROFILE
(from Gundam 00 official site and episodes)

TRUE NAME: unknown
OFFICIAL ROMANIZATION: Feldt Grace
HAIR: pink
EYES: light blue
HEIGHT: unknown
WEIGHT: unknown
AGE: 14
NATIONALITY: unknown
FAMILY: both parents were Gundam Meisters of 2nd generation. Her father is almost certainly Ruido Resonance form the spin-off Gundam 00P, since he's the only male pilot.
ROLE: Ptolemaios' tactical operator
SEIYUU: Takagaki Ayahi (Otome Asakura in Da Capo II, Jasmine in Deltora Quest, Ruchia Nahashi in Venus Versus Virus.[source: ANN] )

**MORE INFORMATION COMING SOON!**

--> Why "Following their footsteps "?
"Their" is referred to Felt's parents. In episode 9, she talks about them to Lockon, and when he says that Felt is following their footsteps, she nods in agreement. So the previous owner Szayel Aporro thought this would have been a suitable title for her fanlisting, and since I agree with him, I've kept it along with the layout that i've made for him! ^_^