The most significant under-the-hood and probably not active yet
addition to Gmail 4.6 is ads. Yup, ads are most definitely coming
to Gmail for Android which managed to stay ad-free all this time,
unlike its web counterpart. […]
The above appears to suggest that you’ll be able to save ads as
messages. Like an ad? Save it, and it’ll become part of your
inbox. Don’t like it, and it’ll get dismissed. Very interesting,
“Interesting” is one way to put it.