well I use it for...
Reading comics, email, watching movies and light surfing. I don't read much else on it due to the screen, but I love the light weight and the size. I might start using Siri for class, but won't use it for full blown writing duties.
If Apple released this along side the original iPad, I would have bought the mini instead of the regular sized 2, 3, and very briefly, 4.
If future generations include the same or better battery life and weight along with the retina display, count me in. Hopefully, I won't make the mistake of buying and selling/returning as I did with the larger size and just stick with the model I have for as long as possible.