arduino + usb wifi adapter?

Using Arduino Networking, Protocols, and Devices
1

Is it possible to connect arduino and usb wifi adapter?

http://www.ebay.com/itm/150Mbps-300Mbps-USB-Wifi-Wireless-Adapter-Lan-Network-Internet-Card-w-Antenna-/330790394117?pt=LH_DefaultDomain_0&var=&hash=item4d04a4d905

without or with arduino usb host shield?
its still cheaper than arduino wifi shield...

2

without or with arduino usb host shield?

Without, no. With, maybe.

its still cheaper than arduino wifi shield...

When you have the Arduino-based wifi driver written, let us know if the money you saved was worth it.

3

ethernet shield + http://www.ebay.com/itm/7in1-Mini-Wireless-802-11-b-g-n-AP-Client-WIFI-Router-Repeater-Booster-Extender-/370728383867?pt=US_Internal_Network_Cards&hash=item565122357b

gives wifi and more ..

4

The client mode should be the one to look after, right?

5

Hi, I am not sure that I understood all of the above conversation but it seems somehow related to my project. I am working on a project where I want two arduino boards to communicate trough wifi (home wifi). That means a sender end arduino will receive analog signal, process it and send it over wifi and the receiving end arduino should receive this signal and process it to do further task. Does this communication is possible with simple usb network adapters that we use with laptops to connect wifi and if so how that adapter can be interfaced with the arduino board?