Do we need a tablet computer?

In fact, I don’t like to sit before a computer for a long time,and I like to surf on the int In fact, I don’t like to sit before a computer for a long time,and I like to surf on the intent for ling time too. So a tablet computer will help me a lot. It makes surfing on the internet casul,and comfortable. Usually when I would use a cellphone, but the screen is too small. And a laptop is too big. So a tablet with a 7 to 9 inches screen may be what I need. I like ipad but I don’t think I will buy one. apple is too closed. I would prefer android system,and there will be one soon.