Paint.NET is free image and photo editing software for computers that run Windows. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. An active and growing online community provides friendly help, tutorials, and plugins.

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Requirement: You must have MS Dot NetFramework Installed before installing Paint Dot Net

Paint Dot Net

If you have a powerful GPU, you can try Pictomio. It is a simple photo collection and viewing application which utilize the power of GPU.

Pictomio comes will a lot of features. For example, you can rate your image, image/video management, liquid-zoom, albums, categories, and much more. Pictomio also supports different language.

In order to use Pictomio, your graphic card must support ShaderModel 2.0 and at least 128MB ram. It is a free application, but unfortunately they only available for Windows machine. Perhaps Lixus version will be available soon.

Pictomio website