First let me say that the Handcent SMS application is a much better messaging app than the stock app that comes with the EVO. However, the app is a battery hog and was draining my battery at a rate of almost 8 % per hour. Reason I know this is because prior to installing this app, my battery life was great. After installing the app, battery drain was really bad. Decided to uninstall the app yesterday and back to about 2% drain per hour which is what I had prior to installing the app. So for those of you with poor battery life, pay attention to what apps you may have recently installed as some of them are not optimized for battery consumption.