[ame=http://www.youtube.com/watch?v=qDngHjl_Sm4]YouTube - ‪Change Volume Anywhere On Springboard With SBVolume For iPhone & iPod Touch - iOS Vlog 482‬‏[/ame]
SBVolume is a tweak that will volume buttons on your Springboard. You can make your volume go lower and higher by pressing them. One of the annoying things about this tweak is that they are so damn small. Sometime you will find yourself at the Spotlight page while trying to press them or tapping another app. This tweak would be great if they were in a different place or a little big bigger and easier to press. Either way, check out SBvolume for free in Cydia.