Tuall 2006 is the viewer, Tuall Editor 2006 is the editor and it prodecues *.2all file (with scenes), which can be viewed and exoplored in Tuall 2006.
Unfortunately, without pixel shadder it won't be possible to run Tuall. We set on high quality graphics, where use of pixel shadder is necessary. We wanted to achive two things: to make house interirors and exteriors look as much real as they can look, and to make graphics artists work as easy it's possible. We thought: if artists can create materials so good, that the 3DS Max renderings looks like real pictures, why not make it possible to do that in real time?
Tuall Editor 2006 is ready, and we are translating the manual now. You don't need to learn how to use it. Just make a scene in max, make an observer object (just a box with observer name), export scene, import it with Tuall Editor 2006 and start to explore it, change properties of objects and materials. All in real time.