First of all I have been using FreeNAS for a few years now and am very happy with it! 

I have had a few USB sticks (different brands and not cheap) that get flaky and the root file system eventually fails to boot. This happened again today and i had to re-install freeNAS. I expect this is because of the low quality nature of USB sticks and i am experiencing unverified bit rot. 

My question/request for the development list. Are there any plans to switch to a ZFS root volume now or in the future? 

Thanks for FreeNAS!