[Linux4christians] Projection screen - cheap replacement?

[Sandra Capri]

Ok,

Maybe I'm gullible, but does anyone know if this works?

http://100inchbigscreentv.com/

They claim you can put this lens on any computer or TV monitor, and get
up to 100" image on the wall.  I originally saw this on ebay for $9.95,
and the seller's feedback is very positive.

Our church already has a projection system, but this might be something
usable for Sunday School off an old laptop. 

Any thoughts?

Sandra Capri