You are correct! This company will combine 2 cameras together so you only have to use one camera for zoom, picture taking, etc.. They work in sync with each other.
I use StereoPhoto Maker http://stereo.jpn.org/eng/stphmkr/ for joining my images together. It's free and has the built in Google Earth option for making 3D images out of models in Google Earth like pictured above.
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