Also on hand was a notebook, which at this point just didn't cut it. Perhaps it's just too early in development, but what was saw had minimal depth and an unfortunately low resolution / perceived refresh rate; when the video loop it was playing switched to the Windows 7 UI, it looked grainy and extremely difficult to read -- undoubtedly the side effect of trying to use a display designed for permanent 3D use in 2D mode.
That leaves us to talk about 12-inch 12GL1, and what can we express other than disappointment? The 466 x 350 resolution (yes, that's less than standard definition) is just awful, you can lose the 3D effect moving marginally to the left or right, depth is not pronounced, and medium-to-fast pace footage just doesn't work. For all the warm-yet-cautious approval we give to the 20GL1, its little brother is quite the black sheep, especially at ¥120,000 ($1,443). Not that ¥240,000 for 20 inches is a bargain, but at least you're getting a quality screen... and for once, you don't actually need additional eyewear to enjoy it. Decidedly two-dimensional snapshots and video taken from an almost pitch-black showroom (i.e. very not optimal) can be found below.
Toshiba Regza GL1 3D series preview
Additional reporting and impressions provided by Chris Ziegler