PC World - One of the many potential pitfalls that could spell the demise of the 3D TV consumer market are the glasses. They're going to be expensive, proprietary, and a general barrier to having a seamless 3D movie experience with the family. One company, XpanD is looking to nip that problem in the bud by announcing universal 3D active glasses that will work on almost any 3D HDTV set.
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