Do any of you use battery saving apps at all? I've tried quite a few and I'm still skeptical whether they actually work or not. The app I'm using now is the Snapdragon one (They make the processor), and it's finished it's week of learning etc and at the moment it's supposedly ensuring my battery last's aslong as possible. I'm not sure whether there apps work or not, or if they just clutter up my phone making the opposite happen! Anyway, what's your thoughts and do you use any of these apps?