My songs cut off before they end on my iphone.

Same problem. I have submitted feedback. It appears that a significant number of people are experiencing the same problem and have been for months - yet, no official response of correction from Apple. This problem is also affecting the 'Match' product they're trying to sell. I would recommend waiting until this problem is fixed before signing up for Match.

This is also happening to me. I hope iTunes fixes the problem asap. I teach spin class and it's a real problem to have a song cut out at the end.