>"Google Now is integrated, and it makes a lot of sense with Glass. The more intelligent Now becomes, the less actual interaction you need to do with the interface."
This is the "big thing". The battery issues will be a minor footnote if the majority of your use of Glass is it providing information as you need it, rather than you fussing with it trying to get the information you need. Google Now allows for this to happen - the better it becomes, the better Glass becomes.
I've never quite figured out what's up with Google Now—I have it on my phone, and I hear it's supposed to be some sort of (semi) intelligent assistant type of thing, but so far it doesn't seem to do very much at all, much less anything "intelligent."
On my phone, it gives me weather info every day (which is nice), and dutifully tells me how to get to work in the morning and return home home at night (thanks Google Now!) but ... other than that, it basically does nothing.
Am I doing something wrong? Is there some setting I need to set ("intelligence: on") that will make Google Now suddenly start telling me what upcoming movies I might like, or interrupting my dinner to tell me about that great TV show I'm about to miss?
Do you have multiple Google accounts? If you're signed in to one you don't use for things, that will cripple Now, because it won't have all the data it needs to do things. Same problem if you do all your searching and Youtube watching and whatnot while signed out.
This is the "big thing". The battery issues will be a minor footnote if the majority of your use of Glass is it providing information as you need it, rather than you fussing with it trying to get the information you need. Google Now allows for this to happen - the better it becomes, the better Glass becomes.