Now that Exposure-Fusion is gaining interest, we should have list of current Exposure-Fusion software and plugins.
What software options exist to perform Exposure-Fusion? For applications, please indicate which platform it is available for (Windows, Linux, Mac) and for plugins which application it requires (Photoshop, Lightroom, Corel Photo Paint, etc). Also, it would be good to know if the software is free, open-source or commercial.
If you have experience with a particular software, then any observation on its ease of use, quality of its output and performance would be very welcome.