Apple has posted a new support document responding to issues with connecting to Bluetooth and WiFi on their 3GSs. According to the document, titled "Unable to use Wi-Fi or Bluetooth with iPhone or iPod touch because there’s no address listed for the device" if you have a grayed-out bluetooth icon, no address for either Bluetooth or WiFi, or you can't use a WiFi network even though it says you're connected, or you can't pair Bluetooth devices to your 3GS, then they list some things you can try to fix it.
