As the title says... or rather asks; will you get the new IPhone with AT&T or will you wait and get it with Verizon or any other such carriers?
and if you do answer, be sure to give a few reasons why.
Hmm this question honestly depends on who you ask... they both have their pros and cons. but i'll wait until the android port comes to the iphone 4g/HD
There is always a need to jailbreak when it comes to me. I cannot live with out all of the little tweaks that have been released and made available through jailbreaking. OS4.0 will be awesome but it will not fix everything; nor will it make everyone happy. that is when jailbreaking comes in...
i will assume you mean spirit jailbreak not sprint
As for what has caused your Iphone to decrease in volume i am not sure it could be anything really.
but you can try opening cydia, and searching for volume boost, that might help some