For style consistency, initialize the new lastPostedDescription instance variable to an empty string, and don't bother checking for nil later.
For style consistency, initialize the new lastPostedDescription instance variable to an empty string, and don't bother checking for nil later.

incbee/Growl,PersonifyInc/growl,PersonifyInc/growl,incbee/Growl,PersonifyInc/growl,incbee/Growl,PersonifyInc/growl,incbee/Growl,PersonifyInc/growl,incbee/Growl