Amazon has announced a hardware update that will up the Kindle’s battery life by 85%. That’s roughly about 7 days instead of 4. The battery life for sleep mode is unchanged. And you should know that the first Kindle won’t benefit from the power management update.
Users have also been waiting for PDF support for the Kindle and Kindle 2. Now you can copy PDF files via USB and use them. You can also convert PDFs to the Kindle format when sending an email. This PDF support is basic: it’s not easy to zoom, create bookmarks and the PDF files can’t be indexed for search.