Yes I know that NemoIDE works with "Byte" (this Prusak site).
To BYTEMAN: I test DivIDE roms (Fatware012) with your "Byte" ROMS in emulator EightyOne and working OK but only with BYTE2-ZX.ROM (switched ON СОВМЕСТ).
Вид для печати
Ok, this means, that if you connect DivIDE to real Byte, you'll need to switch it to "СОВМЕСТ" compatibility mode, and it will work fine :) All signals of Z80 bus are present on system port connector СИСТ. Pinouts could be found here: http://zxbyte.ru/doc/byte_instr.zip. Refer to last pages of this manual.
I think so too :-). This is video with working ROM "Byte" in EightyOne and my pinout ZX Spectrum<>Byte :-)