rotate button sucks on the XO

[NoiseEHC]

> in any case, so far i've heard no good argument against rotating
> the touchscreen to match the screen.  it may not be the most
> convenient way to use or hold the laptop, but it would be better than
> the current situation where screen rotation makes the touchpad
> almost completely useless.
>   

The question remains whether we make it rotate to match the closed ebook 
mode or match the rotated opened-like-a-book mode.