I just downloaded the Android 3.0 SDK and booted up an emulator with it. I rotated the emulator to portrait mode with Ctrl-F12 and then opened and the activity that was bui
The easiest way to tackle that problem is to just flip the display of your host system.
On the Mac you can do this in System Preferences > Display
on Windows there is a keyboard shortcut: ctrl + alt + arrow key
. (see here: https://superuser.com/questions/554589/how-can-i-horizontally-flip-invert-my-monitor-not-rotate and here: http://osxdaily.com/2010/12/28/rotate-mac-screen-orientation/)
And if you have a standalone trackpad you can just turn it around physically to have your mouse pointer move naturally.