I keep getting distracted by working on the icon - it seems really important as the whole brand, design and colours seem to start with the icon.
I have lost hours looking at ShutterStock, iStockPhotos and Dreamstime looking for inspiration for graphics.
I found the following article really interesting regarding iPhone icon development.....
Tutorial on how to create iTunes icon
I am rapidly becoming a Photoshop expert and found the following sites really good for actions and graphics...
Commercial use
Atomic Cup Cake