Amazon’s new Kindle Paperwhite won’t sear your eyeballs with blue light

Amazon today announced the latest version of its Kindle Paperwhite ($140) — it’s most popular Kindle — with at least four major updates that might actually make the Paperwhite a better buy than the more expensive Oasis. Actually, Amazon announced not just one new Kindle Paperwhite, but three: there are new ‘Signature’ ($190) and Kids ($160) models too. More on these in a bit. A bigger, warmer display The new Kindle Paperwhite goes from a 6-inch screen to a 6.8-inch