Serial over AC power

[aaron09]

I'm not sure if this is something someone has already done, and searching brings up way to many other threads to sift through with the keywords available.

Sparkfun has these available at a sale price.

http://www.sparkfun.com/products/9201

http://www.sparkfun.com/products/9202

Looks like it only supports up to 30kbps, though.