Because its supposed to have a rear camera like my ipad3 but only much more portable. I have a nexus7 that i love for its speed screen portability and apps that make it almost an ipad mini but with a more interesting OS -- jellybean over ios. But google/asus made it only with a front facing camera. The 7 inch form factor is perfect for a rear camera because you can have it with you all the time -- especially for people like me who have no need for a smartphone.