- cross platform in principle, Mac only at present;
- an ordinary document-model app just like anything else on the OS — open as many Orics as you want, size and place windows however you want (including full screen), keep them in tabs if you have 10.11;
- attempts to do the intelligent signals processing things — generates a 1Mhz audio wave, resamples it down to your computer rate; composite video mode involves building the composite signal and then decoding the composite signal, all GPU-side — no subjectivity applied for a hopefully non-tacky version of TV emulation;
- several efforts at minimising latency;
- cycle accurate;
- phosphor decay and a genuine 60 different frames per second if your computer is 60Hz; 144 different frames if your computer is 144Hz, etc. Think like pointing a 60fps camera at your display, even if it's 50Hz;
- also emulates some other machines. But who cares?
Will provide binaries when there's even the slightest chance of it being interesting to anybody, i.e. when it'll load things and produce the intended audio.
Screenshots are all of composite video output. I've assumed colour phase advances by a quarter of a cycle on every line, hence the diagonals. That's not true of every machine, so might not be true of the Oric, I've yet to find out so just did the most PAL-conformant thing. Also I've used a vanilla RGB to PAL encoder, paying no attention to the machine specifics so might be way off. There's also an RGB mode because the real machine also has an RGB mode.