I have a jailbroken 4S running 5.0.1. I was trying to iMessage a picture to another person on an iPhone 4S and when I used dictation to write what I wanted to say underneath and then pressed send, the message app crashed. I did it three times, having the same effect each time. I even rebooted and the same thing happened. After getting frustrated that this wouldn't work, I hand typed the message and it sent with no problems. Has anyone else experienced something like this?