OK, oz354x gpe-image successfully built with the GCC4.1 toolchain on host.
Now let me test the images and some packages...
UPDATE:
the images are working! At least gpe-image for SL-C860.
I see the size of the files is a bit different:
initrd.bin is 19,054,608 bytes (was 21,479,440 bytes)
zImage.bin 1,194,524 bytes (was 1,181,648 bytes)
probably newer kernel and different version in the snapshot I have...
Ant