Seems like his market research is purely based upon himself. To expand the control group to 2, I have a smartphone but only use it secondarily when I dont have access to my laptop - to me poking around on a 4 inch screen is usually an inferior experience in many cases.
Smart phones and tablets are decent for consumption but their main limitation is screen real estate and efficient user input (which usually refers to typing). It really is a case by case basis (whats the product, who are your users, etc) and usually the answer is that you're going to want to be well represented across all typical client types.
Smart phones and tablets are decent for consumption but their main limitation is screen real estate and efficient user input (which usually refers to typing). It really is a case by case basis (whats the product, who are your users, etc) and usually the answer is that you're going to want to be well represented across all typical client types.