Version 1.3.0 has just been released. Look for calibre to tell you to upgrade soon, or grab it from the first post if you're especially impatient
Version 1.3.0 - 2013-05-08
- Firmware 2.5.1 is now supported
- A new option to smarten punctuation during conversion is now available
- Spaces are properly added where text is followed by XHTML tags
- Error position reporting is improved
- Extract Kobo JavaScript from a provided KePub (see the README file for details)
- Issues resolved detecting where to add Kobo span tags