Try these fixes for you Wifi issues, How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6

Had same issue with my charter email, just went into mail settings under my charter email account and retyped my password and that fixed my problem with charter email

Actually just tried PassSource and it does work, but go to it on your iPhone's browser and it will automatically put it in your passbook.

I tried this 4 different times, when going to rearrange icons on a screen and done I hit the home button and my 4S phone restarts! And having same thing with passbook as everyone , I did read as of right now there are only a few apps that are compatible with passbook right now, that's what the...

Yes you can do as described, just a matter of clicking and unclicking features you wanted synced on each computer in iTunes. For example your office computer if you just want to sync contacts and calendar then turn off all others to sync when plugged in, vice versa with your home computer. And...

It's my understanding that when the bubble is blue it's using iMessage and when the bubble is green it's SMS/Text Message. I have found occasionally that iMessage doesn't always work 100% of the time and will send it as text instead automatically, Correct? But my iMessage worked just fine after...

Well pray that you actually had "Find my iPhone" enabled, because if you didn't then say goodbye to your phone. I recently left my iPhone laying in a public bathroom and several minutes later realized what I did and went back and it was gone. Now I assumed I had "Find my iPhone" enabled and...

Did you update iTunes already? I had the same issue until I updated iTunes, turned off my computer then back on (Restart didn't work, had to shut it down for couple minutes then back on) & presto started downloading right away.

I noticed my battery draining fast, going from 100% to 20% in less than 12 hours, with only moderate use. My iPhone 4 wouldn't drain that fast with same amount of usage. Last night on 2 of my apps I use a lot ( Hanging & Words with Friends ) I turned off all notifications for those 2 apps and so...