Toshiba refreshed its notebook lineup this morning, adding various new models as well as polishing some existing offerings. Most of the new units are standard fare, but a few stand out: the 3D-capable Satellite A665 and the Optimus-equipped M645.
I think that right now it's a fad, but it will eventually become the future. If we can do it so there is no need for glasses (like the new Nintendo 3DS is working on) then 3D will start to kick in. Right now, the glasses are too expensive and just cause headaches for most people (I could go hours with no problem, but one of my friends and my wife can't last 15 minutes). There is still some improvement to be made (the annoying glasses and the limited viewing angle) but society has shown that it is interested in this technology, so manufacturers will continue to perfect it. 3D is NOT going to go away forever. It'll have its off times, but it aint going to just disappear forever.