Question 8:
Are certain apps glitchy and effect the performance of the phone? I had one app freeze up on me today but I was able to get back to the home screen and then deleted it. Is an occasional freeze up on an app normal?
Most applications are usually pretty solid as they're tested well before being uploaded to the App Store. Occasionally you will have an app crash or freeze up on you. In order to force quit an application, hold down on the top power button until the "Slide to Power Off" slider comes up and then hold the home button down until it returns you to your homescreen.
There is also the rare occasion of one app causing all third party applications to stop working. At that point I usual do a restore, but this has never happened to me, only once on a friend's phone.
The occasional freeze/crash is normal just not if it's doing it multiple times a day or affecting other third party applications.