Unfortunately I'm not nearly making as much headway as I would have liked. uClibc is being rather stallwart. Catalyst however is a great tool, powerful and flexible. I've managed to create stage1/2/3 tarballs, but haven't been able to build a uClibc based installcd yet. A number of packages need either locales support in uClibc (which should be doable) or need functions that uClibc doesn't implement yet. Once I've sort of sorted that out and are comfortable enough with catalyst I'll need to dig into the gnap scripts to see what needs to be done there.

What we do have now is a 2.6.22.1 kernel that includes quite a bit of efika patches and I've managed to cobble together a usb stick that will boot into a gentoo installcd environment. So some progress of a sorts at least. Hopefully this will be of use to people.