If you have a Kindle 4 (that's the one with the hardware controller and no keyboard), Amazon just released an software update. I don't have a Kindle 4, so I haven't been able to test it out. There are no release notes, and the folks on Kindleboards are saying it downloads very quickly, leading them to believe that it's just a patch. Have any of you downloaded and tried it out? Notice anything different? * * * I just tried the update myself, and didn't run into any trouble. Couple of things I should probably point out, though, especially for anyone who's not really...