So I got a delivery today and I'm now the very happy owner of an AtariVox and Seagull 78 adaptor.
Naturally the first thing I did was to answer a question that has been on my mind ever since I saw the Seagull 78, and yes... It does indeed work flawlessly with the Sega Mega Drive's infrared controllers. I did use an extension cable because while it would probably plug in directly I didn't want to force it. Now I can play wirelessly... with only 8 feet of cable plugged in... while I sit right next to 7800 to use the console switches... (I've decided to stick to the wired pad for now). I had a quick couple of games of Xenophobe and Xevious, and it's surprisingly noticeable how much better I am than when using the standard 'europad'. I had to remember that I could use both buttons at the same time with Xevious because the recessed and spongy buttons on the europad make that completely impractical.
For the AtariVox I scraped a little of the plastic out of the sides of the connector on one of my extension cables so I can leave it in the housing. I thought I'd have to seriously hack apart the socket to make it fit but I just shaved a little of the plastic off with a penknife and it fits nicely. I'm enjoying hearing it chime out "Atari vox!" when it powers up. Naturally I had to test it so I gave Dungeon Stalker a whirl and loved every minute of it.
I'm definitely going to have to play around with this and see what I can make it do.
The world has been conspiring against me to keep me from getting these so I'm happy to finally get my hands on them.