Hehe...Its funny you posted this now because just last night I was watching a show I recorded back in 2007 off the discovery Channel called "2057" (What advancements and technologies we may have in 50 years). A big technology talked about was holograms, and this was EXACTLY how they said holograms could be achieved! By shooting small pulses of lasers into thin air. I still don't know how this works, or how they are able to stop the lasers where they want... I will have to read more about it...I'm glad you found that website.
Hehe. I cannot wait for the future ;D ;D ;D