I have both tablets, and they are both better for different things. I primarily use my N7 because the form factor is perfect for reading and I can play emulators and stuff without having to hack it. Also, it is nice to be able to copy files back and forth from it without using some goofy client like iTunes. The iPad is better for kids because it has a physical home button that is more difficult to hit by mistake.
iPhone friend got herself an ipad mini, she says it's bigger & better than my nexus. She's coming over soon to show it to me so this screen is for her..
