Not working for me either.
I've just uploaded a newer version - I've had to change my build environment due to Mozilla's restrictions on the GCC compiler version used to build ff 18... There may be some more teething problems!Its not working. Its missing xpcom.so.
I can use squashfs but I don't know what the performance/memory tradeoff is. I suspect it might be faster compressed as the bottleneck is the flash - at least my sd card light is on a lot when using it. I'll do my next prototype squashed and wait for the feedbackhdonk: Is there any way to make the PND of Firefox smaller? If so, it should be done.