Calibre 1.30, the eBook reader and management software developed for multiple platforms, including Linux, has been released with new drivers and a few new interesting features. If you are a Calibre user and fan then you know that the application gets an update once a week and that the developer manages to squeeze a large number of new features and changes from one version to another. The current 1.30 release does exactly that, even if it’s not one of the biggest updates we’ve seen.