What I wrote was: "Obviously that's too small of a sample to be very precise about the percentage of users that prefer slide-out keyboards (apart from the fact that Mechanical Turk users are unrepresentative of the general population in several ways), but it does mean that the near-extinction of slideout-keyboard phones in retail stores is probably not in proportion to what people actually want."
i.e., it was just a quick and dirty survey to show that the proportion of people who want slideout keyboard phones is not zero, like the stores are pretending that it is.
Don't use Mechanical Turk as a crutch; it's not that far from representative, and nonrepresentative samples are often just as useful, thanks to regression. The real problem is that you asked all the wrong questions. I suggest, if you want to gain *any* sort of ground on your quest to shake up the cell phone industry from the ground up by revealing what you think customers really want, is to read the Freakonomics books, and follow that up with a (well thought out) question to the authors. This sort of thing (mostly the situation where you insist on one thing via all available observations, when the opposite is true) is right up their alley. If you still think you are sitting on some sort of secret, start your own handset company, and get rich off of all the customers that are apparently being ignored.