One of our ultimate dream gadgets has long been a dead-simple wireless HDMI dongle for our laptops -- something that would let us just throw a window (say, Hulu) up on our HDTV without a lot of fuss, cables, or configuration. So obviously we were pretty excited to try out the $199 Atlona Technologies HD-AiR, which marries Wireless USB with DisplayLink and promises to send 720p video directly from your laptop to a base station with VGA and HDMI outputs up to 30 feet away -- until we received the box and noted the small print saying that it doesn't support audio. Hopes: dashed.On top of that, we're not sure if it's DisplayLink, Wireless USB, or some combination of the two, but the video link seemed pretty bandwidth-starved -- full-sc
