I don’t know if there is a way to do it using the original firmware or a homebrew one.
Either way if isn’t possible this could be a really good addition in a near future and I think it can be possible.
The reason I need this is because I live in a building with a lot of wireless connections from neighbors making the airwaves very saturate for the 802.11G and the performance is very poor. But when I use the N Type Wifi is a lot better and everything works perfectly fine. I never being able to use my gaming console wirelessly because of this.
If I can use the WDTV to share the wifi N type thru the ethernet port to any other device in the living room it would be great.