I'm still not done with 'ie15' driver (WIP code is at [0]), but two other emulator writers stepped in. EmuStudio [1] and Bashkiria-2m [2] (both multi-system emulators) now support this terminal. The details of video emulation are still being worked on by all of us (there's a 'snow' effect that seems to happen on real hardware as well -- see [3]).

[0] https://gist.github.com/shattered/5232006
[1] http://zx.pk.ru/showthread.php?t=18027
[2] http://bashkiria-2m.narod.ru/emul.html