im checking out this app, but im not fully sure of what it does/if itll help. on my phone, i have my email set to fetch every 30min. i do have facebook, but not the widget. no twitter account at all. i do have weatherbug elite set to update every 1 hour. so... with JuiceDefender (set to check for 1 min every 15min), is it worth it to actually have? i notice that its always running in the background (much like app killers) and i heard app killers do more harm than help b/c of them running constantly. my question is, will JuiceDefender actually help (with my email/etc being updated every half hour or hour) or will it kill the phone quicker by always running?