One thing I have noticed, is that rootfs' free space fluctuates throughout the normal operation of the device. When I turn it on now, I have 70mb free. After a couple hours to a day, this is 50mb free. As I turn my phone off at night before I sleep to avoid anyone calling me, I'm not sure how bad this gets after a week of 'uptime'. Is it 'safe' to move all of /var to the opt partition? I'm assuming this is where the space usage is coming from but haven't done any real investigation yet... I guess /var is needed during bootup before /opt is mounted however..