Kindle 2.5 Firmware Update Now Available in US

The new release (2.5.3) has been available to international users for a couple of days already, and now American Kindle owners get theirs. The update is automatic via the wireless connection. Just leave your Kindle wireless turned on and the update will flow. (Don't have 3G? Go to the Amazon Kindle update page for a manual download.) 2.5.3 gives you "collections" to help you organize your books and docs ... and tools to use Facebook and Twitter posts to share your notes and highlights with others. More perks: zoom in and pan across PDFs, see what others living and reading in the Kindle ecosystem think are the best passages of the book you've currently your eyes in, enjoy a wider array of font sizes (all improved in clarity), and get the security of password protection. Check Geek.com. But note: the 2.5 update is not compatible with the original Kindle.