I looked in Synaptic and it is there with this warning
WARNING: This is an experimental package, it may damage your filesystem.
Completely missed that! Good spot Husse. Did a bit of googling, can't see anyone posting problems about the UFS (once installed), but yeah, only go with the experimental package if you're sure you can cope (not a light thing for a filesystem). Also, If you intend for linux to run of it, you may have to add the ufs module to the startup lists. Another potential issue includes grub not recognising (and hence not booting from) the new partition, though this might be solved with grub2, can't find any info on that.
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