NOT CONCRETE, but I heard she either had stomach cancer or an infection. This caused her to either retire and reduce herself, or at the very least quit touring. She's my favorite and I miss her like crazy. Not to say she was underrated or under-exposed, but she gets far less recognition here than some of the other string implanted girls. Like I said, the very best we can hope for is that she simply stopped touring to focus on her site. But really, I guess the best we can hope for is that she's safe and healthy.
My bet is she's been reduced/retired and is sitting on a small stockpile of videos she will release periodically. It's never fun saying good-bye to your big-bust fantasy.