Main features in Photomatix for Linux v1.0

Merge to HDR
HDR "Look" with a Single Photo
Native RAW support
Details Enhancer HDR style (Tone Mapping)
Contrast Optimizer HDR style (Tone Mapping)
Tone Balancer HDR style (Tone Mapping)
Tone Compressor HDR style (Tone Mapping)
Fusion/Natural HDR style (Exposure Fusion)
Fusion/Interior HDR style (Exposure Fusion) Available in v1.2
Advanced HDR settings
Finishing (Sharpening & Contrast)
Crop Tool
Straightening Tool Available in v1.2
Saving & loading custom presets
Thumbnails of built-in presets
Thumbnails of custom presets
Noise reduction
Automatic alignment of hand-held photos
Automatic ghost removal
Batch Bracketed Photos
Color managed workflow Available in v1.2

The upgrade to version 1.2 will be free of charge.