I dont see this as an issue, considering I dont think I have really ever used the screen-lock switch, but I have to mute all the time.
Now, turning it into a Pause button would be nicer still.
Since I always use the iPad in landscape mode I rarely switch that button. I'd rather have a lock switch that keeps the iPad from going to sleep or something.
Posted from my iPad WiFi 64GB
Odd of apple to duplicate effort, especially as the existing method works perfectly well.
I'm with Gruber on this, the iPad is mainly for visual media so the emphasis should be on visual controls not audio.
I use the screen lock switch a lot. I will definitely miss it. The volume rocker mutes fast enough. The software screen lock is multiple taps and swipes away.
A petition will do no good. Steve knows best. What we think doesn't matter. If you disagree, you're just doing it wrong. I'm sure its to keep things consistent with the iPhone4 for developers.