We've yapped it up with MID and UMPC makers before in order to figure out exactly what makes the two any different from one another, and now that lines are being blurred at a blistering pace in the ultraportable / netbook / low-cost laptop / undersized PC market, it's about time someone laid down some ground rules. Thankfully, there's no "discussion" necessary here -- just follow that flow chart above and you'll be an expert in seven to ten seconds flat. Guaranteed.Filed under: Laptops