The update was only available for a few hours when it was pulled back for some small adjustments, based on user feedback. Amazon has not announced exactly what the adjustments are at this time, and they are not offering a date on when the fix will be available via Whispernet.
Many people who downloaded have downloaded the 2.5 fix when it was available and no major problems were reported with installation. Some people did claim the print darkening feature that came with the 2.3.4 update disappeared, but others said it worked fine.
The Big features of the 2.5 firmware update is the intergration of Twitter and Facebook. The update will allow you to post to social networking passages up to 150 characters from Kindle Books you are reading. Another feature is a program called collections, which allows you to “organize your ebooks and documents into one or more collections” and likely comes as a response to criticism that navigating page after page of on-device texts is a cumbersome way of managing content. It will also be possible to password protect the Kindle, together with seeing which passages in the current text you’re reading are being most highlighted by other Kindle users.
Other features in the new firmware update include two new larger font sizes, sharper fonts and password-protection capability. Other enhancements include the ability to zoom into, and pan around, PDF documents.
If you were one of the lucky ones that are using social networking with your Kindle, you are one of the few, the proud and the not many.