what are you using as your sms client?
What exactly is the double tone???? Can't that be removed in sounds?
oh, I thought you were talking about getting a text, and then it "reminding" you about the text like 1 min. later.
essentially getting the same text twice in 2 min. if you don't touch your phone.
on a side note, can you turn that off?
Settings > notifications > messages > repeat alert
That's not what we're talking about...
I had the same issue on my iPhone 4 on iOS 4 when it was jailbroken and do on my 4S as well. I'm guessing it has something to do with both bitesms and the stock message app notifying of a message
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I just emailed bitesms to see if they have any insight will let you all know when I hear back
It's not Bite. I have the same issue, it goes away after a reboot, but comes back randomly. I don't have Bite installed. I have SBSettings, LockInfo, and a few other small tweaks installed.
I've only had this issue when i had Move2Unlock 1.7 installed. the dev updated the tweak but it still gives me the double sms tones(or at least had it happened to me once).