While being quite happy with my new Firefox OS phone so far, the biggest stopper for me was that, like all Mozilla products, the root certificate of CAcert was not included and so I could not access sites using certificates assured by CAcert.
Similar to my search for an efficient way to monitor UBC values on an OpenVZ hardware node, existing methods of monitoring a memcached server available on the net didn't make me happy.
A couple of times I searched for an efficient way to monitor the UBC failcounts of OpenVZ containers on a hardware node with Zabbix. Most solutions I found on the net were about using items for each UBC and container and watch for changes in the failcounts. But I never liked those many items, each item needs to read /proc/user_beancounters, process it and send the value back to the Zabbix server.