Squirrel Cage Airplane

[asian1]

http://www.surplussales.com/Fans-Blowers/FansBlow-1.html

Hello
Several years ago, I read about working Airplane model with Axial Flow Fan / Squirel Cage fan in the front of its wing, instead of ordinary propeller fan. What happen to this technology?
Is there any manned airplane based on this technology?
Is it more efficient than helicopter or ordinary airplane?
Thank's.

[asian1]

http://www.fanwing.com/ann_exclusive.htm

Hello
See the website for pictures.
Is there any full scale manned / unmanned airplane based on this technology?