I have had this for a couple of years. The first winter a friend took care of it for me cause i was down in Fl for the winter. He barely watered it but it made it through and it surprised me it did. I had no idea what the name was until this summer. I have taken cuttings from it and they go into bloom while still small. In fact sometimes the blooms r bigger than the cutting is. I just love it as it looks like a Christmas cactus bloom but more than triple in size. So outstanding. Here is a picture. I would post the picture instead of link but dont know how. When i took the picture i didnt know what it was called so thus the name unknown cactus.

http://i511.photobucket.com/albums/.../unknowncactusMarch2008beenbloomingf.jpg