One of my favorite things about the iOS iPod app is the fact that you can control the music from almost anywhere. You can pause or play tracks from the in-line remote, the lock screen, and even in the multitasking bar.
Jailbreaking opens up several other possibilities with utilities like Activator and SBSettings. But if all of these options weren't enough, you now have another tweak to consider. HomeScreenMusic gives you access to iPod controls right on your springboard...