How to scratch an Xbox 360 disc

[A Black Falcon]

My best guess going by what I have heard is that the X360 vertical probably won't scratch the discs on its own... it's just naturally less stable upright, and if it tips over it sure will. While horizontal it's stable, but it's meant to be vertical so there's perhaps a bit higher chance of the system causing some kind of scratching on the disc... (though not like in that movie I'm sure) That could be wrong of course. It's just my best guess.

So, will the Revolution be burdened with such a flaw, or will the system be set up to avoid such a problem?

Nintendo has a higher standard of quality than the competition... it'll be fine, I bet. GC uses a CD drive and isn't exactly known for destroying discs... :) In fact, it's known for being the most durable of the current generation of consoles. I doubt Nintendo will suddenly reduce its quality standards...