Wow, I just looked at the date of my last post and realized we've had Kella for over two weeks now. We've taken the advice of others, and are keeping her in a small room with nothing for her to get into (the bathroom). We go in there many times each day to hold and pet her, and s l o w l y she's getting to be more tame.
Feral cats survive because they are wary and evade threats, and once ingrained those are difficult habits to break. Which is why it's taken Kella two weeks to get to the point where she's starting to relax around us--she's now stretching out, washing herself, and yesterday was the first day we've seen her play! But this taming process is sometimes two steps forward and one step back and we're still sometimes getting hissed at.
But Kella is incredibly adorable. And a real love bug when it comes to being petted.