Those rumors of Uber launching a general-purpose delivery service, rather than the niche options it had before? They're true. Meet UberRush, an option that lets you order most anything from local shops and get it in a matter of minutes. Theoretically, this eliminates the need to run out whenever you need something -- you just ask a courier to do it for you. Stores have to sign up for this to work (and use a common online shopping platform like ChowNow or Shopify), but there are already "hundreds" of them ready to go. The main catch? Right now, UberRush is only available in Chicago, New York City and San Francisco. You may have to wait longer before these rapid-fire deliveries are available in other cities and countries.