I have posted a link to the latest android roof.
rootfs-latest.zip.
The latest android build includes improved gps, wifi, battery fix in one rom. I was able to get google navation to work after the second try. This build is definately an improvement from the previous build. I would recommend replacing your previous rootfs with this rootfs.
Here is the link to the autobuild website: http://xdandroid.southcape.org/rootfs/
Please thank me if is helped you, thanks.