not working..... ......tried to do it too but the xterm writing this message:
this kernel version 2.6.28-omap1 is not supported
please make sure that kernel-power is installed and running.................

i did the:
" sudo gainroot
then
code:
apt-get install kernel-power-bootimg kernel-power-modules
then when it finish install tip in this command
code:
apt-get install multiboot-kernel-power
then you finish just reboot you will see it in multiboot"

but still the same problem......................