Just spotted this over at OSNews and it's damn cool! A company located in Finland (those crazy finns) has developed a technology called fog-screen, also known as WAVE - Walk-thru Virtual Environment. The fog-screen is just that, a dry fog screen, which allows for high quality projections, and you can walk through it. The basic components of the screen are a laminar, non-turbulent airflow, and a thin fog screen (or any particles) injected into and inside a laminar flow.

And it looks just great, i'm telling you. Don't believe me? Go over to their site and check out the photos. Impressive!