Could you visit this white saturation test page on your iPad 3 and Nexus 7 and compare the results?I have an iPad 3 and a Nexus 7, and I just compared some images side-by-side on both. Honestly, I can't tell the difference. Color saturation and detail seems almost as good, with the iPad 3 getting the nod simply because it's higher resolution. Perhaps a professional photographer or designer could spot a difference that I don't see, but then again, I'm not a professional, so there you have it.
http://www.lagom.nl/lcd-test/white.php
On the iPad 3 I can just barely see the square 254. On the Nexus 7 the last visible is 249. So the white saturation is quite a bit worse on my Nexus 7. Even my Nook Color does much better, with 253 being visible.
