Anybody tried a Wireless USB to VGA adapter?

This lets you connect a monitor wirelessly to a PC.

E.G.:
http://www.iogear.com/product/GUW2015VKIT/

http://www.smarthome.com/7743B/Wireless-VGA-TV-Converter-GWB-4000/p.aspx

I want to use one of these to wirelessly connect my laptop to my LCD TV, and another one to connect my security DVR to a monitor on the kitchen counter.