Good to know. Once the fix makes its way into the stable release, I would advise removing the beta version and installing the stable release, unless...
I tried gliv like you suggested and it works fine, it uses about 150MB of memory and the xorg-service uses 30MB. Shotwell and gThumb also works fine....
Your link looks like it's incomplete. However, the first thing I did is search the kubuntuforums for 'ZFS', and unfortunately that results in 0 hits....
Recent upgrades (the last two) have both failed on my Acer Aspire One netbook and the Wifi is not working nor is it shown as an option in the Network...