"Although I still haven't been able to get my hands on an XO for
a serious review, thanks to the joys of VMWare, I was able to give
the Sugar OS a good test drive tonight (you can download the latest
image here). It took a bit of getting used to, but within about 10
minutes, I was navigating quite naturally, using the touchpad
corners to bring up the 'taskbar,' multitasking, etc. The entire OS
is based around starting and stopping 'Activities,' whether
browsing the Web or writing a document..."