Does anyone else use the app Smart Alarm Clock HD from Viaden Mobile? http://itunes.apple.com/us/app/smart-alarm-clock-for-ipad/id481253337?mt=8 It monitors sleep patterns and noise to help improve sleep. Seems to work. Anyway, I'm not advertising it... Currently on my wife's iPad2 (standard 32GB, no hacks), it takes up over 8GB of "disc" space, according to Settings:General:Usage. I know it stores data that it collects, and I'm not sure how long she's been using it. The appstore claims the app itself is under 20MB. So, anyone know if that is normal? It seems a bit heavy.