I'd like to see some rounded corners or...something.

I don't like the angularity of it. Honestly though, I think it's a good design to please the masses, I'll stick with the basic design and just make a few small changes:
- slightly bigger buttons, so they're easy to press. It's not a big deal, but I don't see why buttons have to keep getting smaller all the time. I'd like to see a splash of colour added to them, too. They don't have to be solid green and red like the buttons on a Cube controller, but they could use some colour other than off-white for the power/reset/eject labels on the buttons. Something that says, "PUSH ME!"
- make the colour of the light coming from the drive changeable, that would be sweet! Failing that, I'd like to see it change to red since that has been Nintendo's trademark colour in the past.
- personally, my Revolution would be made of chrome or some shiny metal...not silver plastic! Otherwise, offer a few colours with black or something similar being the default marketing colour.