IOS 7 update iMessage won't work?

My iMessage on my iPhone 4S won't work after I updated it to ios 7.
It says "waiting for activation" and when I go to log into my iTunes account, it simply won't work. Any ideas?

Why won't my twitter app open on my iPhone?

I updated the twitter for iPhone app after I downloaded iOS7 and it was taking forever to update then when it updated it wouldn't let me open the app. I deleted it then reinstalled it and the app still won't open but all the other apps I updated do open. The twitter app does not open at all. Any help? What can I do?

Apps are not showing up after update?

So I didn't delete the apps on my iPhone 4s before I updated the software on it. The apps are on the phone but I can only access them through the app store by clicking "open" on them. They aren't on the screen like they were before. I called the company and they said, after talking to me, that everyone is downloading the software and installing it and said just to be patient and to keep trying to redownload the apps and get them on the screen.

Added (1). I can't delete them.

ITunes says I need to update, but its already updated?

So I'm trying to update my iPhone 5 to iOS 7… There's no Wi-Fi so I have to do it with my computer. Problem is, iTunes says I need the newest version of iTunes to update my phone to iOS 7. BUT I already have the newest version (i updated earlier). Then the Apple Software Updater comes up but there's nothing there since my iTunes is up to date… Is anyone else having this problem? I'm getting so pissed.

Why I can't update iPhone 4s to iOS 7?

ITunes keep on ask me to download the latest iTunes 11.0.5, however, I did it & got the latest version. I try to click the update to iOS7, the pop up keep asking me to download latest iTunes.
My iPhone, I've tried go under setting & check for software update, it keep on shows that my software is up to date 6.1.3.
Why is that so?

Can i use a digital coupon for baskin robins?

My dad emailed me from Hawaii that he has a coupon for Baskin Robbins and its was for my birthday which was on September 16th. Can i show them a picture of it on my iphone and my id so they know i didn't get it from the interwebs? Can i use the coupon digitally?

My iPhone update won't show?

It showed earlier when I was at school and I just needed to go home and get Wi-Fi so now I'm home and it doesn't even show ios7 and I've already restarted my phone?

Why can't i get ios 7 on my iphone 4?

Its available in my area and everything cause my friend got it on her ipad already. But I go to settings and the update thing and it says "ios 6.1.3 your software is up to date"? Is it not compatible with the iphone 4 or something?