After install everything, power off and then on, I pressed volume up and it didn't enter Android, instead it still goes to Meego.
More Detail:
The dual boot kernel, sillyboot v2, and NITDROID ROOTFS was successfully installed exactly as the instruction says.
The md5 sum of every file used was matched (zImage, FAISCO Image, sillyboot v2 and nitdroid_n9_jellybean_alpha5.tar.bz2)
The "Press VolUp to boot alternative OS" message did showed up, and I have tried both press volume up and press volume down, but none of them boot up the Android.
Possible problem: I was using a 64 bit windows 8, and the flasher.exe quit itself right after I open it, but I was able to use it through cmd.exe:
cd path_to_directory_which_contains_your_flasher
flasher -a DFL61_HARMATTAN_40.2012.21-3_PR_LEGACY_001-OEM1-958_ARM.bin -k zImage.pr13 --flash-only=kernel -f -RThe code feedback said "Success"