When it comes to iOS volume HUDs, opinions are all over the place in terms of what it should look like. Apple puts it right in the middle of the screen, while much of the jailbreak community tries to relocate it to the Status Bar, where it’s out of the way of everything.
On the other hand, a new free jailbreak tweak called PulseHUD by Ziph0n takes everything into a completely new realm by displaying a smooth pulse animation in the middle of the screen as you adjust your volume.