I've made some progress trying to get android to boot on the n900. I can tell you what I've done so far.

I took the working 2.6.28 maemo kernel, and use some of the patches from nitdroid and built a new zImage. I download a stock branch of the android source and compiled it, and used the nitdroid setup to create the necessary files android needed. I also added a static build of busybox so I could use it with the bootmenu, because android doesn't have a /usr/sbin/chroot by default.

It boots and I see the Android sign and the init messages, but it gets stuck starting the service. I can see on my sdcard that folders and files are being created and modifed, but I cant get it to boot fully yet. I haven't read into further enough to know how to fix the problem yet, but I think its getting there.

Does anyone else have ideas on how we can get this working?

Thanks