This is a long read but bare with me.
Ok, so referring to these comments if they are in fact real (I dunno- maybe it's real or maybe it's not), I think that the "Wow" factor could possibly be the use of this incredible feature already used in Imax theatres, and now embedded in PC gaming! It's pretty immersive- read the reviews!
The possibilities of a feature like this could easily be implemented in the hardware itself, considering Nintendo's cost-effective strategy, and will just require additional viewing glasses for other players at a low affordable cost. The ones for sale on http://www.eDimensional.com web site include wireless or wired shutter goggles and can be worn over prescription glasses.
Here's are quotes from some of the reviewers who have purchased this product:
Ok, so- the fact that this can improve your gameplay is indeed very interesting, and with the added functionality and use of the innovative controller- truly, this is the closest thing to 3D immersive play and reality without being bogus about other ideas- ahem <the ON v1s0r>
The only drawback to this technological feature is that it slows down frame rates a bit due to stereoscopic frames and currently does not support HD progressive/digital point pixel displays. Although this makes sense according the Big N's plan, it contradicts Rev's compatibility and support for all displays- unless Nintendo is hiding something...
zogdog forum member palmbeer agrees with this:
(just my thoughts- sorry, a little new here, but was inspired and hyped by this board to post!)