Amazon has been notoriously and aggravatingly mum on releasing concrete sales figures for its Kindle series. Last tidbit we heard was that it was the most gifted item in the retail company's history. Or maybe there was some indication by AT&T's note today that 1 million non-phones have been activated, which at this point includes newer Kindles, Nooks, and Sony Readers. At any rate, CEO Jeff Bezos let out the tiniest smidgen of Kindle's sales today in its fiscal report, saying that "millions of people now own Kindles." If we're lucky, next earnings call we'll get to play a "higher or lower" guessing game. Maybe.