I think Randy was saying that it wasnt Mame specific.. Why would he put out a product that wouldnt work with MAME? I mean.. seriously..
What RandyT said was:
Anything that would tie functionality to a specific build of MAME will not be implemented unless it can be implemented alongside the currently planned functionality of the device.
This was specifically in response to a question about gl.tter's LSE code being added to BuddaMAME.
So as I read it, the device will not be made so you can only use it with BuddaMAME and not regular MAME, unless the BuddaMAME support can be implemented along with the regular functionality.
Expanding this, if gl.tter's LSE code gets added into the official build, I'm not sure if Randy would support that either, as that would tie the device to MAME 0.97 (0.98) and up.
But we can learn from the GP-Wiz49 history.
Randy released the device with manual (buttons) mode switching. Software switching and a rotary switch option was not planned but was implemented as long as the original switching mechanism could be maintained.
Meaning I think Randy will implement support for the LSE as long as it doesn't interfere with the currently planned control method.