Reset your expectations: this is by no means an easy task as of today. But imagine doing that *without* int_ua's script ;-)

I followed the instructions on the first post, running always on a debian notebook directly to the uSD. I had problems with stock qemu-static-arm, so I had to install a newer version from squeeze backports. This is all in previous posts, so search the thread.

My options files are attached for reference, but in summary: ubuntu core, no dist upgrade, nemo firmware, nemo kernel, no swap, no initrd, lxde, lxdm, xorg, etc.

Once your installations is done, create the item file for u-boot. The item file must direct u-boot to where your kernel is. If it sits on the 3rd partition of your uSD, point it to ${EXT_CARD}p3 with ext4. The kernel options must point to the root partition, but notice that mmc names are reversed. So if your root partitions is on mmcblk1p3 inside maemo, point the kernel root arg to mmcblk0p3. Notice that default kernel arguments in the script are fine, you only have to change them if you partition scheme is differente from the defaults (as in my case, as I chose no swap).

I still have problem with the kernel mounting my root partition; we can go back to this point if your kernel boots and ends with something like 'cannot access root partition.'

Good luck!