Panucci.

Has great UI for use in the car. Nice big buttons.
One of the best features is that you can skip fwd/back by 10secs with one button, and by 1min with another pair of buttons.

It has the great feature as well that when closed and reopened later it will remember which title was being played and where it was and will resume playing from that point. Great for long tracks like podcasts.
Love it.