JsRender: Next-generation jQuery Templates

JsRender:
JsRender templates are optimized for high-performance pure string-based rendering, without DOM or jQuery dependency
JsRender: Demos
Source code:
https://github.com/BorisMoore/jsrender
Tests:
JsRender unit tests - with jQuery
JsRender unit tests - without jQuery
Perf comparison
See also on JsViews site:
JsViews are interactive data-driven views, built on top of JsRender templates
JsViews: Demos
JsViews and JsRender Overview:
Demo sequence from jQuery Conference October 2011
Other links:
Slide deck: jQuery Conference October 2011
MSDN 'Client Insight' articles on JsRender part one and part two
Training course: JsRender Fundamentals from John Papa on Pluralsight (3 hours of video)