I REALLY like your background fade colors, it's all very nicely done.
How about along with the date, showing the time.
If you get more feedback (like mine) about people not understanding why sound doesn't play, or not knowing sound should play, how about a small label in the rain cloud to say "click to start sound" or something simple like that.
I agree with not doing auto-play, but it wasn't obvious to me how to get sounds to play.
I did try messing with the slider, but that had no affect. Maybe if I change the volume, but the item is not selected, it starts playing? That might help too.
Keep up the good work.