I'm in the process of moving over from my 4 year old and beat up 650 to the 680. Aside from the numerous problems which this forum has mentioned about the 680 (lags, battery life, etc.), I'm now getting a complete lack of vibration alerts despite setting vibration to 'always' in sounds. Any one else have this problem and figured out a solution? This may make me keep the beat-up 650 instead and wait for a GSM Pre.