[monti182]

I've also got a reply via mail from Brian. He asked me to do the same thing. Here's the outcome:

macbookmax:~ Max$ file /Users/Max/Library/Spotlight/OmniOutlinerMetadataImporter.mdimporter/Contents/MacOS/OmniOutlinerMetadataImporter
/Users/Max/Library/Spotlight/OmniOutlinerMetadataImporter.mdimporter/Contents/MacOS/OmniOutlinerMetadataImporter: Mach-O universal binary with 3 architectures
/Users/Max/Library/Spotlight/OmniOutlinerMetadataImporter.mdimporter/Contents/MacOS/OmniOutlinerMetadataImporter (for architecture ppc): Mach-O bundle ppc
/Users/Max/Library/Spotlight/OmniOutlinerMetadataImporter.mdimporter/Contents/MacOS/OmniOutlinerMetadataImporter (for architecture i386): Mach-O bundle i386
/Users/Max/Library/Spotlight/OmniOutlinerMetadataImporter.mdimporter/Contents/MacOS/OmniOutlinerMetadataImporter (for architecture x86_64): Mach-O 64-bit bundle x86_64

seems ok to me...