So I got to tinker with one of the miniand Xplus devices. About $100 lands you an A10 with 1gb of RAM and a HDMI output. Comes with android 4 and is very easy to get to run Fedora 17.
Under android this thing ranges down to 2 watts with wifi up, around 3 under moderate use and 4 watts with a reasonable browser load put on it (mjpeg streaming to firefox). All with wifi up.