Google already sending out invites for Inbox

Yesterday, Google surprised us with a new email app called Inbox. The app itself is an attempt to evolve email, which has been much the same for quite a long time; and, we think that Inbox has done a respectable job of it. Of course, the downside of the app is that it is invite-only, but it looks like Google has started sending out the first wave of invites for the app. Earlier today, the official Inbox by Gmail Twitter feed announced that the second round of invites has gone out, and reports make it sound like most everyone who requested an invite yesterday have gotten their access to the app.