Definitely an improvement
I could go either way on the music but I think making the square count was an improvement. If someone wanted to get a "high score" on the old one, they just had to dodge and watch the counter go up. Also, the circles would randomly give +1000pts, adding more of a luck factor to it.
I still don't get why this game gets so little attention here compared to other sites, it's really good in all it's simplicity.
If I had an iphone, I'd definitely download this.