I never gave it much thought and sort of not paid close attention but noticed that in CM7 ADW launcher is a system app (I'm assuming for any ROM stock or custom the launcher is a system app). I know the stock messaging app is also a system app. Which got me to thinking. Since I use ADW EX instead I could move it to be a system app. And I'm trying out go sms right now and could make it a system app replacing the stock messaging app. Which lead me to wonder the significance of that. Is the system apps a separate partition? Which would mean more apps can be installed to internal storage. Does android treat system apps different? That is in such a way that it would be more beneficial for certain apps like these to be system apps? And what is the easiest way to go about making app system apps? Titanium root says must have the paid version. I'm not opposed to buying apps but I'm not keen on the price considering how little I use the app. I also found a command line method through google search but that seems like too much work for something that obviously can be done with a single tap in an app.