None of these problems happened until the latest update. The Dock Audio problem cant be normal when this happens sound will not play from phone, headphones, airtunes, or Bluetooth the only way to get any sound is plug in a dock speaker, in my case the USB cable for my car stereo.
With my 3Gs, I had no problems up until about a month ago when my battery expanded and ruined my phone, Apple Engineering Department's response: It is normal for the battery to expand larger then the phone it you charge it too many times. How many times is that? We don't know. What can be done? We can sell you a new one with a contract, or for $80 we can sell you a used one.
Ever since Steve Jobs has died, Apple support has been terrible to me. They don't want to do any repairs on anything I have bought from them, they make up some excuse not to. Such as a restore should fix that (Tried several times), ran diagnostics and there seem to be nothing wrong (video card is acting up), the 3Gs battery.