An idea to "fix" this:<p>In the beginning (after signing up) a bunch of orders are created and sent out to the drivers. The orders technically exist, but the drivers are told to not show up right now. Then, at least 15 minutes later, the user can tap a "show up now" button which tells the driver to actually pick up the user. So in the end you have to wait 15 minutes when using the service for the first time, but after that it is a lot faster because the orders created in the beginning can be "activated" immediately.