If only they had this at the time of building the millennium dome...

I have visions of tents with this stuff... A nice, cool airconditioned tent...

Begley cloth? Finally!

Seems like a business plan to sell twice as many displays. I can't believe none of you said this already. Depth perception with such a setup will be minimal if you keep the appearance of the thing anywhere near socially acceptable.

This should work nicely in a bar or club... Combined with strobe lights it should be of some entertainment value.

Laser beam of energy. I have a few problems with that. First of all, the efficiency involved in generating high-powered lasers is, well, not striking. Secondly, we are talking serious energy transport here. But hey, I'll ignore efficiencies, fundamental focus problems and scale here. Suppose you use a laser, you have two options:
1) geostationary orbit for the laser. tricky. Aiming is a bitch at that distance. Prepare for some really serious apoligies ('sorry for vaporising your city')
2) low earth orbit for the laser. Helps with focussing. One problem though: your laser station zooms by at Mach 25. Aiming is again a little trickier. Prepare the apoligies again.
All in all: even CSI Miami is more credible.

I agree. This idea is always accompanied by the 'energy beam' idea, which is such an enormous stretch from feasible truth that it hurts. It falls into the same category as the space elevator.