Amazon yesterday released a minor 3.6.1 update to its Kindle app for iOS, but as noted by TUAW, the company is now warning users in the app description not to install the update.What's New in Version 3.6.1 Note: There is a known issue with this update. If you are an existing Kindle for iOS user, we recommend you do not install this update at this time.According to reports, the update is causing users' entire book libraries to be deleted from their devices. There is no word yet on when a fix can be expected to arrive in the App Store, but Amazon is undoubtedly rushing to fix the issue and Apple is likely to provide an
