nueDynamicClock dynamically adjusts your device processor speed based on different levels of idleness, allowing you to increase battery life without really affecting perceived performance.

Discussion: http://forum.xda-developers.com/showthread.php?t=507212

Changes:

1.2 – fix minimum speed on startup bug, oops. sorry for any inconvenience this has caused

http://www.nuerom.com/BlogEngine/post/2009/04/24/nueDynamicClock-12.aspx