Just in case you want to have fun with your Iphone
A glitch was found in the installation of IOS6 beta 1 and you can install it without having a developer account. I did it this morning with my Iphone 4s and it is nice to enjoy already some of the nice features of IOS6. You can also pay around 5 bucks and you get all the betas as probably this glitch is going to be fixed by Apple with beta 2.
Here is the tutorial I used: http://www.jailbreaknation.com/how-t...-ipad-2-ipad-3
Keep in mind: do not use the restore feature. Use the update feature (you will read about it in the troubleshoot section)
Just in case you brick your Iphone...I am not responsible even though you can always restore it to 5.1.1.