Video streaming!
This would be a killer product if they included video streaming in addition to audio streaming. It is already connecting to your PC via ethernet or WiFi to playback audio, why not add video codecs?
Then it becomes an all in one solution. Stick one of these in every room that you have a TV in and your central media server can dish up everything. If you have a HTPC with TV tuners, you no longer need additional cable boxes for each TV, just put one of Yamaha's media extender/amp/receiver combos in every room!
TV+speakers+neoHD and no need for other boxes in the room!!!