I'm working on a scheduling tool called xLights that plays LOR and Vixen sequences over any combination of 1) DMX, 2) LOR/D-Light, or 3) Renard networks. It will also run on Windows, Mac OS/X, and Linux, although Mac compatibility is still untested. The current status is that playback of individual sequences (both LOR and Vixen) is working. I'm just working on playlist control before I release a beta.
This would allow you to sequence with Vixen and play back to a combination of Lynx and D-Light equipment. However, you would still need DMX and D-Light on separate networks, each with their own dongles - same as the LSP scenario.
Matt