I think that's the one DiabloNL ended up with, and he was mostly pleased with it (other than modding it to control the light level).
I've got one of
these -- the model that Sony recommended -- and it works well enough. I'd far rather have the lightwedge.
I've seen both those models at Barnes & Noble, if you want to try them out.
Now that LightWedge is apparently going for it, I think I'm in less of a hurry to try making some kludged-together frankensteinian monstrocity of my own.