This is what I wanted to actually even confirm at this point for any prospective: the stick runs Plug'n'Play at the WDTV Live, with good to very good reception. It's in my apartment, for example. Possible to stream 1080p film material smoothly over the 300Mbit WLAN my D-Link DIR-655 on the WDTV Live, and this. Over a distance of several rooms By just a wall through it even had to stream (with DD-WRTv24SP1 Linksys WRT54GL) HD material also no problem on my 54Mbit router. The stick is moderately warm with this type of permanent transfer, but this should not be a problem especially since he is standing so "chilled" in its base of four sides through the room air.
Conclusion: For the WDTV Live therefore a strong buy recommendation, especially at the price ...