What you say is true when there are only two competitors - every move by the underdog will then be good for consumers. But chances are that a dumped Nexus/Kindl

What you say is true when there are only two competitors - every move by the underdog will then be good for consumers. But chances are that a dumped Nexus/Kindle will hurt others much more so than Apple. (Most likely example: Google may push Amazon out of the tablet market, which would be a loss for consumers.)