SproutCore 2.0.

The first SproutCore was powerful but suffered from an uncanny valley problem. SproutCore 2.0 abandons the desktop model:

Remember: SproutCore 1.6 is still the best way to write desktop-style apps, and will continue to be maintained and developed by the core team and contributors. Right now, SproutCore 2.0 is the best choice only if you are building web-style apps, or want to augment an existing application.

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