I think the same way most people said before me, name change will fork for a little while and then everybody will know its 3dgs (and im sure people continue saying 3dgs to it.).

Since the "thing" is not changed, there is no need to change the name.
It should be advertised better, better looking games & demos & successful titles shoul placed or at least referred at the front page. And this is true that bad looking games that have 3dgs on it makes eninge look bad.

Better looking demos or games or a great "Tech Demo" will work. Engine is great, all it needs some advertesing and show off.

There are some games that made really good, like Strefa 22 or Kabus 22 or (some cyrillic characters) 22 . They are all same game released in turkish,polish,russian and will be released at the Czech Republic and Germany(7 March 2008). Turkish version released with full turkish and english speech sound & subtitles, and french,italian and some other langugaes with subs.(take a look at the table on the right http://tr.wikipedia.org/wiki/Kabus_22 it says oyun motoru(engine) : Acknex (3D Game Studio)). Its not the best that can be done with A6 but still its good.

Such succesfull games should be made and used to advertise the engine (others do it.)