To celebrate the Microsoft aquisition of Nokia Mobile Phones, I hereby present a fresh kernel-plus-nat-exfat version.
(ExFAT being Microsoft creation, that is)

Get it from here: http://www.swagman.org/juice/zImage_...xtfat-20121301
(md5sum=5e9c4e445763256613810f8c5a5e9f07)

The new kernel is fully compatible with modules from the previous kernel-plus-nat version (http://www.swagman.org/juice/kernel-...9-plus_nat.tar) so if you've already got that there's no need to download new modules. Just upload the kernel to your ubiboot config (or flash it in case you are not using ubiboot)

I am running that now on my device, and it works correctly.
However, I have not tested mounting ExFAT partitions so be my guest and please test that functionality