There are a number of great support docs at Apple's site that I think everyone should be aware of for:
Basic Troubleshooting:
http://docs.info.apple.com/article.html?artnum=305740
Minimum System Requirements:
http://docs.info.apple.com/article.html?artnum=305703
Connecting to the Internet with EDGE or Wi-Fi:
http://docs.info.apple.com/article.html?artnum=305711
Turning off and Resetting:
http://docs.info.apple.com/article.html?artnum=305743
Not Recognized in iTunes for Windows:
http://docs.info.apple.com/article.html?artnum=305716
Not Recognized in iTunes for Mac OS X 10.4.10 or later:
http://docs.info.apple.com/article.html?artnum=305719
Updating and Restoring iPhone Software:
http://docs.info.apple.com/article.html?artnum=305744
There are many others, these just look like they may answer some of the questions floating around here. For those who like to do their own research, you must have these docs available and know how to find others within Apple's Knowledge Base. Hope this helps some one!
Basic Troubleshooting:
http://docs.info.apple.com/article.html?artnum=305740
Minimum System Requirements:
http://docs.info.apple.com/article.html?artnum=305703
Connecting to the Internet with EDGE or Wi-Fi:
http://docs.info.apple.com/article.html?artnum=305711
Turning off and Resetting:
http://docs.info.apple.com/article.html?artnum=305743
Not Recognized in iTunes for Windows:
http://docs.info.apple.com/article.html?artnum=305716
Not Recognized in iTunes for Mac OS X 10.4.10 or later:
http://docs.info.apple.com/article.html?artnum=305719
Updating and Restoring iPhone Software:
http://docs.info.apple.com/article.html?artnum=305744
There are many others, these just look like they may answer some of the questions floating around here. For those who like to do their own research, you must have these docs available and know how to find others within Apple's Knowledge Base. Hope this helps some one!