Google on Friday began shipping its Nexus 7, which is smaller and less expensive than Apple’s iPad, and is meant to compete with both that device and Amazon’s Kindle Fire.
This summer, Microsoft announced that it would create its own tablet, Surface. And Amazon is working on a new version of the Kindle Fire, with a larger display, that could compete more directly with the iPad, according to a developer briefed on Amazon’s plans who did not want to be identified talking about unannounced products.
