I can now finally contribute (well, maybe for about a week… but whatever…).
If the term “Muon Trap” is officially cannonized in the Omnibus Universe, I won't oppose it… but at the same time I'll probably stick to calling them “Ghost Traps”.
I have no objection to the Slime Blower attachment, although the Slime Tether might be harder to reconcile.
Boson Dart I'm happy with keeping.
And of course I'm more than happy with the idea of reconciling some of the more difficult-to-justify tech with being stuff “invented for the game”, same with some of the story elements (such as Gozer's supposed return).
As it happens Vincent had begun penning a story covering the events of the game, and I'm keen on writing some adaptations of the game's plot as well.
And Fritz, I think Shandor's return would work really nicely with the events of 1992 and onward.
The main plot of Shandor's return is pretty solid and gives us a lot to work with, and with the exception of Stay Puft doesn't actually severely contradict what we've written…
I also honestly feel that that wasn't the real Gozer… it just lacked the serious threat that Gozer posed (although there have been a few good explanations bandied about for this).