This is wonderful and exciting news!!! Hopefully she'll continue to let you pet her more often and will learn to love it so much that her fear will vanish.

Although my Ziggy isn't feral she's a very shy cat. It took her about 3 years to finally feel comfortable in her home and to start hanging out with me and her siblings more often. She used to just be more of a loner most of the time. Now she loves coming up to me for pets and she's purrs her little heart out. The last few nights she's even been sleeping on my bed while I'm in it which is unusual for her. My only problem is that now Storm seems very jealous of her and he's been bullying her. He also did this with Sky when he started coming to me for pets and loving. Ziggy will still hide when any one comes over though and she most likely always will.