ACPI and APM

There are two types of power managenet: APM and ACPI
APM is older than ACPI .... my toshiba(A75-S206 BIOS) supports ACPI.

ACPI(Advanced Configuration and Power Interface) ::
"(ACPI) An open industry standarddeveloped by Intel, Microsoft, and Toshiba for configuration and power management."

I am still quite new to this but , what I want is a applet which uses ACPI. I am Gnome user which is having a applet uses APM not ACPI. I don't know if it has applet which is using ACPI.

KDE has "Klaptop_check" which uses ACPI , which is quite good. I don't know how I start loving Gnome.