Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great product - future of reading

I am an avid reader spending more than two hours a day reading. First thing that strikes me when I got Kindle is it's light weight and form factor with rounded edges. It is easy to hold and read in bed as on the desk. Second thing that strikes is the display. The display is just great for reading. Even reading constantly for hours does not strain your eyes. The buttons are nice and easy to navigate. In short Kindle is a truly great product and I don't think I would be reading much of paper books now. Coming to what could have been improved? A wi-fi connectivity would have been great as it would allow Kindle to surf Internet without depending on mobile networks and at no cost to Amazon or users. Secondly an expansion card like SD Card would be been great considering they are cheap and would expand the storage significantly. Finally the interface to organize books and document could have been improved. Hope we will see these features in next version of Kindle.