First off, that iZ3D monitor is same 400$ that Samsung one costs. Their glasses are 10$ and nVidia glasses are 200$. And with iZ3D I don't think you need just nVidia cards, you can buy any card that suites you. So why being so vocal about Zalman and iz3D soluzions having "only one source of equipment", when nvidia hardware is also "just once source".. Only nVidia glasses, and only nVidia GPUs are supported.
It seems like a nice technology, more so than others, I agree. Specialy since people will start buying 120Hz monitors more and more in a year or two from now, just like they did with LCD TVs, without thinking about 3D (good parallel there with sound). But I would really appriciate it if was supported with any graphics card, in any OS, and with any glasses (or at least glasses with more than one source, and less than 200$ per package). Still a lot work to do there. But it's a good foundation so we can have seamless transition to true 3D games in 4-5 years from now. Hopefully by than it won't be "nVidia only" just the same as PhysX. Who knows, maybe future DirectX incorporates this as well