Hi had an Adam, the idea (and display) was pretty cool, but the build quality and software was not that great. Eink really has taken over that niche though, so not sure I really miss those displays.
We played with lenticular displays and they are very good and very safe. But like it's just not that useful to have a 3d display. A 2d screen is perfectly good at conveying the same information.
A favourite of mine is Field Emission Display technology. However they are largely irrelevant now because OLED essentially fill the same role.