The new iOs 7 home screen icons are slightly more rounded than previous versions. You can see this easily if you have any icons with a rounded bezel on the icon. When you look at the MoneyWall2 app, you can see that the edges of the white bezel are cut off. A simple way to fix this is to remove the bezel or stroke, and you get something like MoneyWall, which fits in with the overall feel of iOs7 a little better.
The above image shows the difference between the two. You can download a template here: http://dribbble.com/shots/1127699-iOS-7-icon-shape-PSD?list=users