All the info posted so far is 100% correct. The only thing I'd add is that if you plan on using the stock software and want future software updates, I would be very cautious about removing any pre-installed apps. Doing so could possibly cause future updates to crash and not install. First, try to see if you can long-press the app icon and see if there's an option to 'hide' the icon. If not, I highly recommend "Titanium Backup", as it allows you to easily 'freeze' an app, essentially taking it off the app screen but it is still there if needed for updates.