Have a look at this feature: Yelp for iOS — When in New York City, the two tightest distance filters are measured in blocks, not miles. Isn’t this neat? I guess every user who uses Yelp in New York City appreciates this feature. It shows that Yelp is a user-friendly application that cares about the users’ needs.
I wonder, however, about the feasibility of developing such a feature. Yelp is a world-wide service, and only a minimal fraction of users actually live in New York or visit the city. The feature, despite being small, needed to be thought of, described, assessed, developed, tested, rolled out… this is a lot of effort and cost. Is it really worth implementing a neat feature for a very small user group? I think not. What is your opinion?