In the comments left by Batteroo they say:
Nope, this Brad Jones person (who uses multiple names) does not work for Batteroo.
So it's 'this week', but they don't say where/when.
Does anybody know?
Nope. And they didn't formally invite me, or anyone else it seems, apart from a post from this person who doesn't work for them on the EDN website that I haven't read until just now.
And they put out a message the other day saying their top priority is now some rubbish about doing R&D for the troops, so it's not going to happen. Or if it does they'll run it without notice and say nobody turned up to challenge them. Not that anyone should join their silly debate, just let them makes fools of themselves again. If they have technical details to present, let them just do it, it can stand on it's own merits.
Engineering like this isn't a debate, you either post data and reproducible facts and methods, or you don't.