I just got my new iPhone 4. Jailbreak success. Now I'm trying to change the length of the vibrate again. The old process of modifying the .plist file under PrivateFrameworks doesn't seem to work for me. After I make the changes, replace the file, reboot, there's no vibrating at all. I have to use the original .plist file with the annoyingly short vibrate. Anybody else had this issue? Suggestions? Thanks!