Important information about repartitioning
The next nightly will repartition /system to be 600 MB (from the previous 400 MB) to fit the ever enlarging Android system. The repartition process is automatic, but you will lose your /data. When flashing, the first installation will fail with a warning that your /data will be wiped, simply select the .zip again and the install will proceed. If you've backed up your phone before installation (which you should), you may restore /data from backup (using "Advanced Restore" option in CWM) with no ill effect.