Does RoboMind also work with the newer EV3 set? Are there any other robot "brains" that RoboMind can interact with outside the NXTs?
Lego Mindstorms EV3 is not yet supported. See http://RoboMind.net/en/docFaqs.htm#faq5 for more details.
Technically the export of programs to, for example, Arduino is not much different from NXTs (same compiler). We intend to support more of these robots in the future.