For users who upgrade to the now available Calibre 0.7.43 or later, you should also upgrade to v1.3 of Open With plugin.
Special thanks to GRiker for adding OSX support and some suggested OSX application paths/icons.
Changes in v1.3:- Support for OSX (Windows/Linux already available)
- Default applications list is now platform specific - don't display Windows applications to Linux/OSX users etc.
- Added more applications for Windows - Adobe Digital Editions, EPUBReader (Firefox plugin)
- Added default applications for OSX (Sigil, ADE, EPUBReader, Photoshop CS5, Pixelmator, Preview, Acrobat, Adobe Reader, Skim)
- Added default applications for Linux (Sigil, EPUBReader, Gimp)
- Bug fix for keyboard shortcuts not working if switch rows without reopening context menu