They haven't quite gotten as minuscule as SNL's fabled "Invisa," but MP3 players are clearly getting . And if the "Kana" from Japan's Green-House is any indication, their prices may begin to match the size. This 1GB player measures a little over 1 by 3 inches and weighs less than an ounce, selling for about $52, according to Akihabara News. For now, though, it's not invisible.
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