I'm sure the iPad was on --- I took one outside here at work yesterday, and even when a cloud rolled over, one could scarcely see the display --- in full bright sunlight, it was impossible.
Here's a review of an old Fujitsu Stylistic 4121 w/ an image which contrasts a transflective display w/ a regular one:
http://www.tabletpc2.com/Review-Fujitsu4121.htm
The specific image is:
http://www.tabletpc2.com/Graphics/Re...reFujitsus.jpg
William