Verizon Wireless has released the official Android 2.3 build for the Casio G'zOne Commando, available via OTA update now. In addition to Gingerbread, software version C771M070 adds a number of performance improvements, including reduced lag and a fix to the proximity sensor. If it hasn't pushed to your Commando yet, you can manually initiate the update (Menu Key > Settings > About phone > System Updates > Check New). Full update instructions, as well as a list of features and improvements, can be found at the source link.
Source: Verizon Wireless