i thing its pretty clear that natal does include a z camera from 3dv or some derivative there of. as for the ms exec statement, i belive they are talking about the software and its origins beeing before the 3dv buy out. in an interview that i think ive
already posted on this thread, the algorithms where in development since way back and they where looking for something to "plug them into" and thats probobly where 3dv came in..
as for pricing, yes TOF cameras are typpically very expensive.. but so was accelerometers before the wiimote its all about the volume.. consider cpus and gpus, they are really hard things to make [40nm processes, pushing on 32nm] and yet they are available
in consumer products.. i do belive microsoft has the real deal here
actually the papers could have been more scientific.. but the videos are cool also, it seems like the 3dv zcam had a 1.3 mega pixel resolution.. it would seem likely that natal will have something similar