(Self professed Mac fan)
Well, maybe they did. The suit is partially over advertising claims.
"Promote your ideas on the MacBook Pro's dazzling display. An aggressive ATI Mobility Radeon X1600 graphics processor under the hood coupled with up to 256MB of GDDR3 SDRAM powers the mobile visual studio you've been waiting for. Retouch color, edit on location, video conference with colleagues: Do it all, anywhere.
MacBook Pro makes your ideas more enlightening, with a sharp, high-resolution screen. See blacker blacks, whiter whites, and many more colors in between on a brilliant 15.4-inch, 1440-by-900-pixel or 17-inch, 1680-by-1050-pixel digital display. Enjoy a nuanced view simply unavailable on other portables."
(Emphasis mine) This could well be considered false advertising.