I don't believe so. The wireless adapter for the TV has to be a samsung device as the drivers for the device are embedded into the tv's firmware. It may be possible that other usb adapters will work, but I (we) have no way of knowing which ones they may be.
I have a linksys router (E3000) running 3rd party firmware (dd-wrt) which allows the device to run as a "client bridge". Basically, it acts as a wireless nic which I can connect 5 devices to it via it's switch ports. I have my blu-ray, tv, game console, and an IP cam all connected to the device.
The cost of a router capable of running modified firmware to serve this purpose is less than the retail cost of the required usb wireless adapter.