gmu-gmenu2x-jffs install instructions

Obtain a FAT formatted mini SD card.
  I don't think it matters if it's fat16 or fat32, but 2GB or less is best.
Obtain IZ2S205beta-enhanced-020410.zip from here:
  http://russelldavis.org/2010/10/21/proper-release-of-iz2s-enhanced/
Unzip the IZ2S zip file onto to the root of the mini SD card.
Copy gmu-gmenu2x-jffs.tgz to the root of the mini SD card.

Boot IZ2S:
  Skip the wifi setup.
  If first time running IZ2S wait for it to generate keys.

At command prompt type:
  cd /mnt/ffs
  mkdir /mnt/sd0/backup
  cp -R * /mnt/sd0/backup/
  sync
  sync
  rm *.arl
  rm *.xml
  rm -rf wpa_supplicant
  rm *.jpg
  rm Z*
  sync
  sync
  ls

You should have only properties.txt and start.sh left.

  /mnt/sd0/bin/busybox tar -xzvf /mnt/sd0/gmu-gmenu2x-jffs.tgz
  sync
  sync
  df -h
  poweroff

Wait for screen to go black.
Remove IZ2S sd card.
Press the green button.
Answer questions until you get a command prompt.  Then type:

  gmenu

For some reason i didn't get connected with wifi the first time, but it did connect after a reboot.  I'm keeping an eye on that.