Hi and Welcome to the Forum!
Regarding your question, there have been a few other members with camera problems. As far as I know no one has come up with a definitive answer for it though. A reset has helped with a few of these members and some have done it a few times before it was operable again. You have said you have rebooted, just to clarify do you mean a reset or restart.
The IPad Forum is a Community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the IPad.
There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions that you have. If then you can't find the answer you are seeking, then by all means post your question. You will find many friendly and informed members here only too willing to help you.
We also have our own App - Discussion Forum for IPad Users It is a very simple app to navigate.
Reading the iPad Manuals is a great place to start, so please download a copy of these
http://www.support.apple.com/manuals/ipad/
A very informative thread from which you will learn many tips and shortcuts for the iPad
http://www.ipadforums.net/ipad-general-discussions/21590-tips-tricks-those-us-who-dont-know.html
We have rules like any Community so please read these also
http://www.ipadforums.net/forum-rul...um-rules-everybody-please-read.html#post14697
Once again we welcome you here and are so pleased you have joined us. Enjoy!!
Sent from my iPad using iPF