Gmail's Mobile Site Promotes Inbox App

I'm not sure if this is new, but I've noticed that Google now promotes the Inbox app when opening Gmail in the mobile browser. "Get Inbox by Gmail, a new email app from the Gmail team," suggests the interstitial page, which still lets you "go to the mobile Gmail site".

Here's a screenshot from an iPad:

And another screenshot from a Nexus 5:

Google used to promote the Gmail app.