Hearing that Uber is encroaching on your territory is enough to make most companies a little nervous, and I don’t think GrubHub is an exception. The Chicago-based startup generated more than $1 billion in sales for restaurants across the country last year, but the launch of UberEATS might take a few chunks out of those sales. Well, it might take a few chunks in the cities where it’s actually available, which currently includes: Chicago, Houston, Los Angeles and San Francisco, but will eventually expand to Atlanta, Austin, Dallas, Melbourne, New York, Paris, Seattle and Washington as well.