Amazon's new Kindle has plenty of desirable features -- like a month-long battery, double the storage and a more responsive screen -- but some exciting new additions weren't highlighted on the press release. Diving through the official User's Guide for just such unheralded items, the Kindle World Blog discovered the unit will come with a second English dictionary, a PDF contrast adjustment and a microphone. As you can see immediately above, that last won't be accessible out of the box -- and may just lead to audio annotations down the road -- but the hacker community (or more legitimately,
