i couldnt get my os kb to stop vibrating either when sending texts, but when i use swype instead it no longer vibrates, so if it bothers you that much you can always install the swype cab.
http://forum.ppcgeeks.com/attachment...9&d=1266608993
Also...anyone have an issue with TellMe?? I still havent found a way to get it to work. The thing wont even open for more than a second.