Dan Potter has released KallistiOS 0.80. A major plus being it was uploaded in a binary image, allowing it to be burned to a CD or uploaded using a serial or ethernet cables. Dan Potter has noted their are several things left to finish, mainly process support, network support, and a much improved 3D and video API. Such improvements will really cut down the time and complexity it takes to create Dreamcast games and ports.
This is something to really look out for in the next few months.