What Viewer2 offers:

• A completely custom interface that allows very flexible image organization
• Fully 3D-accelerated visuals that do not detract from usability
• A database including tagging, searching, importing IPTC tags and automatic tag suggesting
• IPTC data editing
• Full Unicode support

What Viewer2 does not offer:

• Tons of features that are useless for people who only want to view images
• A price tag