The Fish has been honoured to be an early recipient of Inbox. Don't tell him if you got it too.
I think email has single-handedly destroyed the dysfunctional bureaucracy. In a company, everybody and their dog sends stuff to every person, just to cover their rears. 5000 emails in the inbox is typical for a harried executive. Well, forget those people, because they only use Microsoft. Let's think about people in the New Economy who are effective.
We all now have at least three devices - phone, tablet, and computer. We are getting info from at least two sources - hangouts (texts), and email. We'll get the email first on the phone, while we are enjoying our espresso at Starbucks. It's a link to a report, we don't want to deal with that now - pin it for the computer.
Things can be bundled and labelled - 'Boring' for corporate stuff, etc. Links to YouTube videos can be saved for the tablet at home.
I didn't go through all the features, since I'm not a busy person, but I can see the potential here, and it would be great for my kids.
Update: Apparently some people get a 'Golden Ticket' to invite others. Not me, they're probably worried I'd sell it. :)
Update2: Man, no wonder they aren't giving me anything. $200 a pop!