The full wireless system features a 30� LCD screen that is transparent when not in use. We are not sure whether it’s touch-sensitive or not, however, not to mention it must be. The keyboard too is transparent and is ergonomically designed for the kill embellished with light sensitive illuminated keys. Source

A transparent IMAC has the potential to really be a hit if/when it hits stores. The concept was designed by Adam Benton, and is extremely well done. A transparent screen might take a little getting used to, but im sure the sheer amazingness of the idea would outweigh the learning curve. The transparent keyboard might be equally as cool; just imagine setting one of these babies on your desk! Im getting sick of the generic black screen sleep mode just thinking of the possibility of a transparent feature.