I think that Google is, at this point, doing a simple marketing exercise to test the concept. Why spend millions in R&D before you even know if people are interested in the new form factor?<p>So far, the reaction seems to be mostly positive. By hiring a few stunt guys and a blimp Google created a lot of hype, got a nice amount of feedback on that.<p>Heck, I was suckered by the presentation, even while thinking "I wonder what they are using the send the image feed, surely not 3G or even LTE... and what else besides doing Plus group conversations can this do?". I <i>knew</i> it wasn't revolutionary, but still got excited.