* Dynamically adjusts CPU speed and voltage based on demand for CPU (idle/work
  ratio threshold is user-configurable)
* One binary works on both Linux 2.4 with the 'proc' interface and Linux 2.6
  with the 'sysfs' interface. No need to recompile if you switch kernels!
* Can reduce CPU speed and voltage if AC power is disconnected from the
  computer (requires ACPI)
* Can reduce CPU speed and voltage if CPU temperature gets too high (Requires
  ACPI, temperature is user-configurable)
* Can be told to lock CPU at minimum or maximum frequency via signals
* "nice()'d" processes will not increase CPU speed
* Crash-proof frequency switching even if you have a very tempermental CPU
  (some AMD mobile Athlons in particular)
